use oficial github action isntead of forgejo since its not on forgejo

.gitea/workflows/build.yaml

@@ -1,4 +1,4 @@
-name: Test via test action and then build image
+name: Test and build image
 on:
   push:
     branches:
@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v3
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5
+        uses: https://github.com/docker/metadata-action@v5
         with:
           # list of Docker images to use as base name for tags
           images: |