Fix Docker metadata action version

Author: lemon07r

.github/workflows/docker.yml

@@ -60,7 +60,7 @@ jobs:
 
       - name: Extract metadata
         id: meta
-        uses: docker/metadata-action@v6
+        uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ matrix.image }}