ci: keep Gitea checkout action

.gitea/workflows/deploy.yml

@@ -24,22 +24,7 @@ jobs:
 
     steps:
       - name: Checkout
-        env:
-          HTTP_PROXY: http://10.0.2.2:7890
-          HTTPS_PROXY: http://10.0.2.2:7890
-          ALL_PROXY: socks5://10.0.2.2:7891
-          NO_PROXY: localhost,127.0.0.1,.svc,.cluster.local,gitea-http.gitea.svc.cluster.local,git.luochen570.cn,docker.gitea.com
-        run: |
-          set -euo pipefail
-          git init .
-          if git remote get-url origin >/dev/null 2>&1; then
-            git remote set-url origin "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git"
-          else
-            git remote add origin "$GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git"
-          fi
-          git fetch --depth=1 origin "$GITHUB_SHA"
-          git checkout --detach FETCH_HEAD
-          git submodule update --init --recursive --depth=1
+        uses: actions/checkout@v4
 
       - name: Setup Hugo
         env: