【Git】WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

概要

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@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:XXXX.
Please contact your system administrator.
Add correct host key in /c/Users/YYYY/.ssh/known_hosts to get rid of this message.
Offending RSA key in /c/Users/YYYY/.ssh/known_hosts:1
Host key for github.com has changed and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

git で fetch したら上記のエラーが発生する現象に遭遇した

上記の件が影響しているようだったので

新しく SSH key を GitHub に登録したら正常に fetch できるようになった