Bump docker/build-push-action from 5.3.0 to 7.3.0 (#364)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.3.0 to 7.3.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/2cdde995de11925a030ce8070c3d77a52ffcf1c0...53b7df96c91f9c12dcc8a07bcb9ccacbed38856a)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 7.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/docker-build-pr.yml

@@ -51,7 +51,7 @@ jobs:
 
       - name: Build and push Docker image
         id: push
-        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0 # v5.3.0
+        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
         with:
           context: .
           platforms: linux/amd64,linux/aarch64