chore(deps): bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
           - 6379/tcp
     steps:
       - name: check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: set up golang
         uses: actions/setup-go@v4
         with:

.github/workflows/create-pull-request.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-20.04
     if: github.actor != 'dependabot[bot]'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: get branch name
         id: vars
         run: |

.github/workflows/lint.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
           go-version: '1.20'

.github/workflows/staging-build.yaml

@@ -12,7 +12,7 @@ jobs:
         with:
           go-version: 1.16.3
       - name: check out code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: set up docker buildx
         uses: docker/setup-buildx-action@v3
       - name: cache docker layers
@@ -62,7 +62,7 @@ jobs:
     needs: build
     steps:
       - name: check out code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: download deployment artifact
         uses: actions/download-artifact@v3
         with:

.github/workflows/testcov.yml

@@ -10,7 +10,7 @@ jobs:
           - 6379/tcp
     steps:
       - name: check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: set up golang
         uses: actions/setup-go@v4
         with: