net/gitup: Update to 0.99
While here:
- drop pkg-post-install as it causing checksum mismatch on sample file.
ChangeLog:
https://github.com/johnmehr/gitup/compare/0.98-14-g5e26080...0.99
PR: 274955
MFH: 2024Q1
(cherry picked from commit 5445a794bdb24b84073c5c52d65313092153a31d)