try stg deploy again with new manifest tagging

.gitea/workflows/deploy-stg.yaml

@@ -23,11 +23,14 @@ jobs:
         username: ${{ secrets.REGISTRY_USER }}
         password: ${{ secrets.REGISTRY_TOKEN }}
 
-    - name: Tag "latest" with "stg"
-      run: |
-        docker pull gitea.jbrumond.me/doc-utils/docs-web:latest
-        docker tag gitea.jbrumond.me/doc-utils/docs-web:latest gitea.jbrumond.me/doc-utils/docs-web:stg
-        docker push gitea.jbrumond.me/doc-utils/docs-web:stg
+    - name: Re-tag "latest" with "stg"
+      uses: https://gitea.jbrumond.me/actions/docker-tag@v0.1
+      with:
+        registry: https://gitea.jbrumond.me
+        image: doc-utils/docs-web
+        old-tag: latest
+        new-tags: |
+          stg
 
   deploy:
     runs-on: ubuntu-latest