Bump pre-commit from 2.19.0 to 2.20.0 in /requirements.d

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 2.19.0 to 2.20.0.
- [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@v2.19.0...v2.20.0)

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

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

requirements.d/precommit.txt

@@ -1,3 +1,3 @@
 # Requirements for pre-commit python package
 
-pre-commit==2.19.0
+pre-commit==2.20.0