update checkout repository

.gitea/workflows/build-ubuntu.yaml

@@ -8,6 +8,8 @@ on:
 
 env:
   ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
+  # ACTIONS_CHECKOUT: actions/checkout@v4  # 在环境变量中定义 checkout 动作路径
+  ACTIONS_CHECKOUT: http://192.168.1.33:30080/gitea_admin/checkout@v4
 
 defaults:
   run:
@@ -19,7 +21,7 @@ jobs:
     
     steps:
       - name: 检出代码
-        uses: gitea_admin/checkout@v4
+        uses: ${{ env.ACTIONS_CHECKOUT }}
 
       - name: 更新包管理器
         run: sudo apt update