ci: hardcode registry url to fix act env evaluation

.gitea/workflows/docker-build.yml

@@ -7,9 +7,7 @@ on:
       - 'README.md'
       - '.gitignore'
 
-env:
-  REGISTRY: git.unfilteredrealm.com
-  IMAGE_NAME: ${{ github.repository }}
+
 
 jobs:
   build:
@@ -25,15 +23,15 @@ jobs:
       - name: Log in to the Container registry
         uses: docker/login-action@v3
         with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
+          registry: git.unfilteredrealm.com
+          username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v5
         with:
-          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          images: git.unfilteredrealm.com/${{ github.repository }}
           tags: type=raw,value=latest
 
       - name: Build and push Docker image