use service name

.gitea/workflows/build-push.yaml

@@ -16,11 +16,12 @@ jobs:
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
       with:
-        endpoint: tcp://localhost:2376
+        endpoint: tcp://docker:2376
 
     - name: Login to Docker Registry
       uses: docker/login-action@v3
       with:
+        endpoint: tcp://docker:2376
         registry: git.tbrnt.ch
         username: ${{ secrets.REGISTRY_USERNAME }}
         password: ${{ secrets.REGISTRY_TOKEN }}
@@ -28,6 +29,7 @@ jobs:
     - name: Build and push
       uses: docker/build-push-action@v5
       with:
+        endpoint: tcp://docker:2376
         context: .
         push: true
         tags: |