feat: update workflows metadata version

Author: vaggeliskls

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v3
+        uses: docker/metadata-action@v4
         with:
           images: |
             ${{ env.REGISTRY }}/${{ github.repository }}