Bump pre-commit from 2.16.0 to 2.18.1 in /.github/workflows

Bumps [pre-commit](/~https://github.com/pre-commit/pre-commit) from 2.16.0 to 2.18.1.
- [Release notes](/~https://github.com/pre-commit/pre-commit/releases)
- [Changelog](/~https://github.com/pre-commit/pre-commit/blob/main/CHANGELOG.md)
- [Commits](pre-commit/pre-commit@v2.16.0...v2.18.1)

---
updated-dependencies:
- dependency-name: pre-commit
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/constraints.txt

@@ -1,5 +1,5 @@
 pip==21.3.1
-pre-commit==2.16.0
+pre-commit==2.18.1
 black==21.12b0
 flake8==4.0.1
 reorder-python-imports==2.6.0