Update python-iniparse to version 0.5 / rev 29 via SR 1153651
https://build.opensuse.org/request/show/1153651
by user StevenK + dimstar_suse
- Switch to autosetup and pyproject macros.
- No more greedy globs in %files.
- Refresh iniparse-insert-after-commented-option.patch to apply with -p1
- Drop now unneeded Buildrequires on python3-devel