added registry login

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

.gitea/workflows/docker.yaml

@@ -9,6 +9,13 @@ jobs:
       - name: Clone Repository
         uses: actions/checkout@v4
 
+      - name: Login to registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ secrets.REGISTRY_PATH }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_PASS }}
+	  
       - name: Build docker image
         run: docker build -t web4rail .