git: Update `symlinkPointsToGitDir` version check

The Git 2.45.2, 2.44.2, 2.43.5, and 2.42.3 releases reverted the symlinkPointsToGitDir fsck check. To avoid unknown config errors during testing, update the version check to only apply the configuration to supported versions.

This change did not make the 17.1 release, therefore Git versions >= 2.45.2 will result in errors. Backport to 17.1 to fix this.