build(deps): bump docker/build-push-action from 6.17.0 to 6.18.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.17.0 to 6.18.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@1dc7386...2634353)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ghcr-image-build-and-publish.yml

@@ -61,7 +61,7 @@ jobs:
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
-        uses: docker/build-push-action@1dc73863535b631f98b2378be8619f83b136f4a0  # v6.17.0
+        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83  # v6.18.0
         with:
           context: .
           platforms: linux/amd64,linux/arm64