[L10N] Kickoff for Git 2.23.0 round #2

Hi,

Git v2.23.0-rc2 has been released, and it's time to start new round of git l10n. This time there are 4 updated messages need to be translated since last update:

    l10n: git.pot: v2.23.0 round 2 (4 new, 6 removed)
    
    Generate po/git.pot from v2.23.0-rc2 for git v2.23.0 l10n round 2.
    
    Signed-off-by: Jiang Xin <worldhello.net@gmail.com>

You can get it from the usual place:

    https://github.com/git-l10n/git-po/

As how to update your XX.po and help to translate Git, please see "Updating a XX.po file" and other sections in "po/README" file.

-- Jiang Xin