git: Upgrade to 2.37.4

upgrade include fixes for CVE-2022-39253 CVE-2022-39260

Release notes:
https://github.com/git/git/blob/master/Documentation/RelNotes/2.37.4.txt



Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>