Fix git version number in changelog
- #1249 PR by @asottile.
- Add support for the `pre-merge-commit` git hook.
- #1210 PR by @asottile.
- - this requires git 1.24+.
+ - this requires git 2.24+.
- Add `pre-commit autoupdate --freeze` which produces "frozen" revisions.
- #1068 issue by @SkypLabs.
- #1256 PR by @asottile.
