chore(actions): bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...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/linter.yaml

@@ -19,7 +19,7 @@ jobs:
     if: ${{ github.actor != 'dependabot[bot]' && github.event.pull_request.draft == false }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           # fetch-depth: 0 # can be removed if VALIDATE_ALL_CODEBASE = true

.github/workflows/publish.yaml

@@ -16,7 +16,7 @@ jobs:
     if: github.actor != 'dependabot[bot]'
     steps:
       - name: Check out the repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Docker meta
         id: meta

.github/workflows/verify-pullrequest.yaml

@@ -25,7 +25,7 @@ jobs:
       image_tag: "tungbeier/gcloud-pubsub-emulator:test"
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Build image
         uses: docker/build-push-action@v4