git-review: 1.27.0 -> 1.28.0 (#59513)

* git-review: 1.27.0 -> 1.28.0

Semi-automatic update generated by
https://github.com/ryantm/nixpkgs-update tools. This update was made
based on information from
https://repology.org/metapackage/git-review/versions

* git-review: refactor

- do not use fetchurl on mutable GitHub archives
- postPatch is unneeded as argparse has been removed from requirements.txt upstream