ci: bump docker/build-push-action from 5.3.0 to 6.9.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.3.0 to 6.9.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5.3.0...v6.9.0)

---
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/release.yaml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Build Container Image
         id: docker_build
-        uses: docker/build-push-action@v5.3.0
+        uses: docker/build-push-action@v6.9.0
         with:
           context: ./wiki/
           file: ./wiki/Dockerfile
@@ -93,7 +93,7 @@ jobs:
 
       - name: Push Container Image
         id: docker_push
-        uses: docker/build-push-action@v5.3.0
+        uses: docker/build-push-action@v6.9.0
         with:
           context: ./wiki/
           file: ./wiki/Dockerfile