Bump docker/build-push-action from 3.2.0 to 4.0.0 (#307)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.2.0 to 4.0.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@c56af95...3b5e802)

---
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.yml

@@ -48,7 +48,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push Docker image
-        uses: docker/build-push-action@c56af957549030174b10d6867f20e78cfd7debc5
+        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
         with:
           context: .
           push: true