尝试使用 apt 包管理器更新 GitHub CLI 失败并出现以下错误：
Failed to fetch https://cli.github.com/packages/dists/stable/InRelease: The following signatures couldn't be verified because the public key is not available: EXPKEYSIG C99B11DEB97541F0
GPG error: The following signatures were invalid: EXPKEYSIG C99B11DEB97541F0