Update docker/metadata-action action to v6

Author: renovate[bot]

.github/workflows/build-and-push-docker-image.yml

@@ -40,7 +40,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository }}
           flavor: |