Problems :
Support for password authentication was removed. Please use a personal access token instead.
remote: Please see https://github.blog/2020-12-15-token-authentication-requirements-for-git-operations/ for more information.
Solution
Settings => Developer Settings => Personal Access Token => Generate New Token => Fill up the form => click Generate token => Copy the generated Token
In “Keychain” on mac os,
search for github.com => Find the “internet password entry” for github.com => Save the token as password => done
Reference link:
https://stackoverflow.com/questions/68779331/use-token-to-push-some-codes-to-github
https://stackoverflow.com/questions/68775869/support-for-password-authentication-was-removed-please-use-a-personal-access-to