Bump docker/build-push-action from 6.15.0 to 6.18.0 (#248)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.15.0 to 6.18.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.15.0...v6.18.0)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 6.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/release.yml

@@ -61,7 +61,7 @@ jobs:
         id: date
         run: echo "date=$(date '+%FT%TZ')" >> $GITHUB_OUTPUT
       - name: Build and push image to GitHub container registry
-        uses: docker/build-push-action@v6.15.0
+        uses: docker/build-push-action@v6.18.0
         with:
           context: .
           push: true