fix: run build with cli container (#15)

* refactor: switch to running bluebuild with podman run to get newer buildah versions

* fix: remove registry inputs that don't exist yet

(these came from @gerblesh's PR which i'm trying to fix here)

* chore: test with alpine image

* style: cleaner newline usage in podman command

action.yml

@@ -25,17 +25,10 @@ runs:
     # clones user's repo
     - uses: actions/checkout@v4
 
-    - uses: sigstore/[email protected]
-
-    # pull self-contained binary program from installer image (outputs a bash install script)
-    - name: Install BlueBuild tool
-      shell: bash
-      run: podman run --rm ghcr.io/blue-build/cli:v0.7.0-installer | bash
-
     # deps used by cli to build & inspect imaegs
     - name: Install Dependencies
       shell: bash
-      run: sudo apt-get install -y buildah skopeo
+      run: sudo apt-get install -y podman
 
     # blue-build/cli does the heavy lifting
     - name: Build Image
@@ -45,4 +38,5 @@ runs:
         REGISTRY_TOKEN: ${{ inputs.registry_token }}
         PR_EVENT_NUMBER: ${{ inputs.pr_event_number }}
       run: |
-        bluebuild build --push ./config/${{ inputs.recipe }}
+        podman run --env-host --network=host --privileged --device /dev/fuse -v $PWD:/bluebuild \
+        ghcr.io/blue-build/cli:v0.7.1-alpine build --push ./config/${{ inputs.recipe }}