fix: docker login direct instead of action

.gitea/workflows/ci.yml

@@ -15,11 +15,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Login to Gitea Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ gitea.actor }}
-          password: ${{ secrets.REGISTRY_TOKEN }}
+        run: echo "${{ secrets.REGISTRY_TOKEN }}" | docker login ${{ env.REGISTRY }} -u ${{ gitea.actor }} --password-stdin
 
       - name: Build and push
         run: |