Update docker/build-push-action action to v6.18.0 (#54)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/docker-publish.yml

@@ -51,7 +51,7 @@ jobs:
 
     - name: Build and push Docker image
       id: build-and-push
-      uses: docker/build-push-action@v6.15.0
+      uses: docker/build-push-action@v6.18.0
       with:
         context: .
         push: ${{ github.event_name != 'pull_request' }}