devel/gitg: update to 41 and unbreak

While here:

• Add missing dependencies to appease stage-qa warnings
• Remove no-op post-patch target

PR: 272362
Approved by: kwm (maintainer timeout, >2 weeks)
MFH: 2023Q3

(cherry picked from commit db739c0e3510f564fe2fba015e5de0d1f8982abe)