Bump docker/build-push-action from 3.2.0 to 4.2.1 (#3172)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.2.0 to 4.2.1.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v3.2.0...v4.2.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/docker-image.yaml

@@ -40,7 +40,7 @@ jobs:
 
       - name: Build and push Taskwarrior Docker image
         id: build-and-push
-        uses: docker/build-push-action@v3.2.0
+        uses: docker/build-push-action@v4.2.1
         with:
           context: .
           file: "./docker/task.dockerfile"