update backend address

.github/workflows/deploy.yml

@@ -26,6 +26,6 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GITHUB_REPOSITORY: ${{ github.repository }}
-          REACT_APP_BACKEND: "https://api.t-hole.red/"
+          REACT_APP_BACKEND: "https://api.hole-thu-qwertyuiop.xyz/"
           REACT_APP_BUILD_INFO: version-${{steps.date.outputs.date}}
           COMMIT_MESSAGE: "Build for: ${{ github.event.head_commit.message }}"