我对 ubuntu-21.0.4 非常陌生，因为我安装了 2.30.2 版本的 git。我在将代码推送到主服务器（git push origin master）时遇到问题，请帮我解决这个问题，我得到了以下错误...
Password for 'https://saitarun800@gmail.com@github.com':
remote: Support for password authentication was removed on August 13, 2021. 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.
fatal: Authentication failed for 'https://github.com/saitarun135/Collabartor_API.git/'