挂的代理，试了新加坡，日本，美国都不行。每次都提示 
claude update
Current version: 2.1.119
Checking for updates to latest version...
Error: Failed to install native update
Error: Failed to fetch version from https://downloads.claude.ai/claude-code-releases/latest: timeout of 30000ms exceeded
Try running "claude doctor" for diagnostics

有没有解决办法