Bump docker/build-push-action from 5.0.0 to 6.3.0 (#60)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.0.0 to 6.3.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@0565240...1a16264)

---
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/ci.yml

@@ -22,7 +22,7 @@ jobs:
           install: true
 
       - name: Build Docker image and store in cache
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09
+        uses: docker/build-push-action@1a162644f9a7e87d8f4b053101d1d9a712edc18c
         with:
           context: .
           push: false