build(deps): Bump docker/build-push-action from 4.1.1 to 4.2.1

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 4.1.1 to 4.2.1.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v4.1.1...v4.2.1)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build-and-test.yml

@@ -60,7 +60,7 @@ jobs:
           echo "Cache contents available at: ${CACHE_PATH}"
 
       - name: Build docker-salt-master image
-        uses: docker/build-push-action@v4.1.1
+        uses: docker/build-push-action@v4.2.1
         with:
           context: .
           file: ./Dockerfile

.github/workflows/publish.yml

@@ -130,7 +130,7 @@ jobs:
           password: ${{ secrets.QUAYIO_PASSWORD }}
 
       - name: Build
-        uses: docker/build-push-action@v4.1.1
+        uses: docker/build-push-action@v4.2.1
         with:
           context: .
           file: ./Dockerfile

.github/workflows/security-analysis.yml

@@ -39,7 +39,7 @@ jobs:
 
       - name: Build docker-salt-master image
         if: github.event_name != 'schedule'
-        uses: docker/build-push-action@v4.1.1
+        uses: docker/build-push-action@v4.2.1
         with:
           context: .
           file: ./Dockerfile