咋啥也不知道，莫名就出现了
Failed to connect to github.com port 443: Timed out
于是我果断百度，发现如下解决办法

git config --global http.proxy http://127.0.0.1:1080

git config --global https.proxy https://127.0.0.1:1080

git config --global --unset http.proxy

git config --global --unset https.proxy

最后就解决了

解决 Failed to connect to github.com port 443: Timed out