update link

Author: jaimergp

sphinx/src/maintainer/updating_pkgs.rst

@@ -51,7 +51,7 @@ When a new version of a package is released on PyPI/CRAN/.., we have a bot that
         <https://help.github.com/en/github/using-git/which-remote-url-should-i-use>`_
         for instructions on using the ``https://`` protocol if you have
         enabled `two-factor authentication
-        <https://help.github.com/en/articles/securing-your-account-with-two-factor-authentication-2fa>`_.
+        <https://docs.github.com/en/authentication/securing-your-account-with-two-factor-authentication-2fa>`_.
    - Fetch the remote: ``git fetch regro-cf-autotick-bot``
    - Checkout the branch of the PR, git should automatically link it to the `regro-cf-autotick-bot` remote if this is the only remote with a branch of that name.
    - If there are multiple remotes with this branch name, you need to first checkout the remote branch and then turn it into a local branch: ``git checkout regro-cf-autotick-bot/<branch> && git checkout -b <branch>``