Bump docker/build-push-action from 5.4.0 to 6.1.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.4.0 to 6.1.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@ca052bb...31159d4)

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

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

.github/workflows/docker.yml

@@ -34,7 +34,7 @@ jobs:
           images: my-docker-hub-namespace/my-docker-hub-repository
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25
+        uses: docker/build-push-action@31159d49c0d4756269a0940a750801a1ea5d7003
         with:
           context: .
           file: ${{ github.workspace }}/px4/humble.Dockerfile