Mac安装brew：unable to access ‘https://github.com/Homebrew/brew/‘: LibreSSL SSL_connect: github.com:443

homebrew官网：https://brew.sh/index_zh-cn
执行官网命令：

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

报错：

==> Checking for `sudo` access (which may request your password).
==