Bump docker/build-push-action from 4.1.1 to 6.3.0 (#62)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 4.1.1 to 6.3.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@2eb1c19...1a16264)

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

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -43,7 +43,7 @@ jobs:
           install: true
 
       - name: Build Docker image and store in cache
-        uses: docker/build-push-action@2eb1c1961a95fc15694676618e422e8ba1d63825
+        uses: docker/build-push-action@1a162644f9a7e87d8f4b053101d1d9a712edc18c
         with:
           context: .
           push: false