update readme action

.gitea/workflows/update_readme.yml

@@ -29,7 +29,7 @@ jobs:
                 apt-get install -y curl
                 curl -fsSL https://deb.nodesource.com/setup_24.x | bash
             fi
-            package='node-fetch'
+            package='node-fetch@2'
             if [ `npm list -g | grep -c $package` -eq 0 ]; then
                 npm install $package --no-shrinkwrap
             fi