chore: add actions and templates

.github/CODEOWNERS

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+* @castrojo

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: true
+contact_links:
+  - name: Questions
+    url: https://github.com/orgs/ublue-os/discussions/
+    about: Ask a question, share tips, and help others

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Request a Package
+description: Request an RPM package to be included in an image
+labels: [package-request]
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to fill out this request!
+  - type: textarea
+    id: describe-bug
+    attributes:
+      label: Describe the package
+      description: Include why you feel this should be on the image
+      placeholder: Tell us what you need
+      value: "I'd like to request the package `vim` because ..."
+    validations:
+      required: true
+  - type: dropdown
+    id: image
+    attributes:
+      label: Image
+      description: Which specific image do you want?
+      options:
+        - All Images
+        - Bazzite
+        - Kinoite
+        - LXQt
+        - Mate
+        - Silverblue
+        - Ubuntu
+        - Vauxite
+    validations:
+      required: true
+

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/build.yml

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+name: build-ublue
+on:
+  pull_request:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+      - '**.txt'
+  schedule:
+    - cron: '20 20 * * *'  # 8:20pm everyday
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
+      - '**.txt'
+env:
+    IMAGE_BASE_NAME: main
+    IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
+
+jobs:
+  push-ghcr:
+    name: Build and push image
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+    strategy:
+      fail-fast: false
+      matrix:
+        image_name: [silverblue, kinoite, vauxite, sericea, base, lxqt, mate]
+        major_version: [37, 38]
+        include:
+          - major_version: 37
+            is_latest_version: true
+            is_stable_version: true
+          - major_version: 38
+            is_latest_version: true
+            is_stable_version: false
+        exclude:
+          # There is no Fedora 37 version of sericea
+          # When F38 is added, sericea will automatically be built too
+          - image_name: sericea
+            major_version: 37
+    steps: 
+      # Checkout push-to-registry action GitHub repository
+      - name: Checkout Push to Registry action
+        uses: actions/checkout@v3
+
+      - name: Matrix Variables
+        run: |
+          if [[ "${{ matrix.image_name }}" == "lxqt" || "${{ matrix.image_name }}" == "mate" ]]; then
+              echo "SOURCE_IMAGE=base" >> $GITHUB_ENV
+          else
+              echo "SOURCE_IMAGE=${{ matrix.image_name }}" >> $GITHUB_ENV
+          fi
+          echo "IMAGE_NAME=${{ format('{0}-{1}', matrix.image_name, env.IMAGE_BASE_NAME) }}" >> $GITHUB_ENV
+
+      - name: Generate tags
+        id: generate-tags
+        shell: bash
+        run: |
+          # Generate a timestamp for creating an image version history
+          TIMESTAMP="$(date +%Y%m%d)"
+          MAJOR_VERSION="${{ matrix.major_version }}"
+          COMMIT_TAGS=()
+          BUILD_TAGS=()
+          # Have tags for tracking builds during pull request
+          SHA_SHORT="$(git rev-parse --short HEAD)"
+          COMMIT_TAGS+=("pr-${{ github.event.number }}-${MAJOR_VERSION}")
+          COMMIT_TAGS+=("${SHA_SHORT}-${MAJOR_VERSION}")
+          if [[ "${{ matrix.is_latest_version }}" == "true" ]] && \
+             [[ "${{ matrix.is_stable_version }}" == "true" ]]; then
+              COMMIT_TAGS+=("pr-${{ github.event.number }}")
+              COMMIT_TAGS+=("${SHA_SHORT}")
+          fi
+
+          BUILD_TAGS=("${MAJOR_VERSION}" "${MAJOR_VERSION}-${TIMESTAMP}")
+
+          if [[ "${{ matrix.is_latest_version }}" == "true" ]] && \
+             [[ "${{ matrix.is_stable_version }}" == "true" ]]; then
+              BUILD_TAGS+=("${TIMESTAMP}")
+              BUILD_TAGS+=("latest")
+          fi
+
+          if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+              echo "Generated the following commit tags: "
+              for TAG in "${COMMIT_TAGS[@]}"; do
+                  echo "${TAG}"
+              done
+              alias_tags=("${COMMIT_TAGS[@]}")
+          else
+              alias_tags=("${BUILD_TAGS[@]}")
+          fi
+          echo "Generated the following build tags: "
+          for TAG in "${BUILD_TAGS[@]}"; do
+              echo "${TAG}"
+          done
+          echo "alias_tags=${alias_tags[*]}" >> $GITHUB_OUTPUT
+
+      # Build metadata
+      - name: Image Metadata
+        uses: docker/metadata-action@v4
+        id: meta
+        with:
+          images: |
+            ${{ env.IMAGE_NAME }}
+          labels: |
+            org.opencontainers.image.title=${{ env.IMAGE_NAME }}
+            org.opencontainers.image.description=A base ${{ env.IMAGE_NAME }} image with batteries included
+            io.artifacthub.package.readme-url=https://raw.githubusercontent.com/ublue-os/main/main/README.md
+            io.artifacthub.package.logo-url=https://avatars.githubusercontent.com/u/120078124?s=200&v=4
+
+      # Build image using Buildah action
+      - name: Build Image
+        id: build_image
+        uses: redhat-actions/buildah-build@v2
+        with:
+          containerfiles: |
+            ./Containerfile
+          image: ${{ env.IMAGE_NAME }}
+          tags: |
+            ${{ steps.generate-tags.outputs.alias_tags }}
+          build-args: |
+            IMAGE_NAME=${{ matrix.image_name }}
+            SOURCE_IMAGE=${{ env.SOURCE_IMAGE }}
+            FEDORA_MAJOR_VERSION=${{ matrix.major_version }}
+          labels: ${{ steps.meta.outputs.labels }}
+          oci: false
+
+      # Workaround bug where capital letters in your GitHub username make it impossible to push to GHCR.
+      # https://github.com/macbre/push-to-ghcr/issues/12
+      - name: Lowercase Registry
+        id: registry_case
+        uses: ASzc/change-string-case-action@v5
+        with:
+          string: ${{ env.IMAGE_REGISTRY }}
+
+      # Push the image to GHCR (Image Registry)
+      - name: Push To GHCR
+        uses: redhat-actions/push-to-registry@v2
+        id: push
+        if: github.event_name != 'pull_request'
+        env:
+          REGISTRY_USER: ${{ github.actor }}
+          REGISTRY_PASSWORD: ${{ github.token }}
+        with:
+          image: ${{ steps.build_image.outputs.image }}
+          tags: ${{ steps.build_image.outputs.tags }}
+          registry: ${{ steps.registry_case.outputs.lowercase }}
+          username: ${{ env.REGISTRY_USER }}
+          password: ${{ env.REGISTRY_PASSWORD }}
+          extra-args: |
+            --disable-content-trust
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        if: github.event_name != 'pull_request'
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Sign container
+      - uses: sigstore/[email protected]
+        if: github.event_name != 'pull_request'
+
+      - name: Sign container image
+        if: github.event_name != 'pull_request'
+        run: |
+          echo "${{ env.COSIGN_PRIVATE_KEY }}" > cosign.key
+          wc -c cosign.key
+          cosign sign -y --key cosign.key ${{ steps.registry_case.outputs.lowercase }}/${{ env.IMAGE_NAME }}@${TAGS}
+        env:
+          TAGS: ${{ steps.push.outputs.digest }}
+          COSIGN_EXPERIMENTAL: false
+          COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}
+
+      - name: Echo outputs
+        if: github.event_name != 'pull_request'
+        run: |
+          echo "${{ toJSON(steps.push.outputs) }}"
+

.github/workflows/conventional-commits.yml

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+name: Conventional Commits
+
+on:
+  pull_request:
+    branches: main
+
+jobs:
+  build:
+    name: Conventional Commits
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: webiny/[email protected]

.github/workflows/release-please.yml

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+on:
+  push:
+    branches:
+      - main
+name: release-please
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v3
+        with:
+          release-type: node
+          package-name: release-please-action