Update pre-commit to 2.12.0

[pyup-bot]

This PR updates pre-commit from 2.10.1 to 2.12.0.

Changelog

2.12.0

===================

Features
- Upgrade rbenv.
 - 1854 PR by asottile.
 - 1848 issue by sirosen.

Fixes
- Give command length a little more room when running batch files on windows
so underlying commands can expand further.
 - 1864 PR by asottile.
 - pre-commit/mirrors-prettier7 issue by DeltaXWizard.
- Fix permissions of root folder in ruby archives.
 - 1868 PR by asottile.

2.11.1

===================

Fixes
- Fix r hooks when hook repo is a package
 - 1831 PR by lorenzwalthert.

2.11.0

===================

Features
- Improve warning for mutable ref.
 - 1809 PR by JamMarHer.
- Add support for `post-merge` hook.
 - 1800 PR by psacawa.
 - 1762 issue by psacawa.
- Add `r` as a supported hook language.
 - 1799 PR by lorenzwalthert.

Fixes
- Fix `pre-commit install` on `subst` / network drives on windows.
 - 1814 PR by asottile.
 - 1802 issue by goroderickgo.
- Fix installation of `local` golang repositories for go 1.16.
 - 1818 PR by rafikdraoui.
 - 1815 issue by rafikdraoui.

Links

• PyPI: https://pypi.org/project/pre-commit
• Changelog: https://pyup.io/changelogs/pre-commit/
• Repo: https://github.com/pre-commit/pre-commit