update Gitea workflow

.gitea/workflows/build.yml

@@ -1,9 +1,5 @@
 name: TypeScript Bot CI
 
-permissions:
-  packages: write
-  contents: read
-
 on:
   workflow_dispatch:
 
@@ -35,10 +31,11 @@ jobs:
 
       - name: Log into registry ${{ env.REGISTRY }}
         if: gitea.event_name != 'pull_request'
-        run: |
-          echo "${{ secrets.GITEA_TOKEN }}" | docker login "$REGISTRY" \
-            -u "${{ gitea.actor }}" \
-            --password-stdin
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ secrets.REGISTRY_USER }}
+          password: ${{ secrets.REGISTRY_TOKEN }}
 
       - name: Extract Docker metadata
         id: meta