Update pre-commit requirement from ~=2.15 to ~=2.16 (#5482)

Updates the requirements on [pre-commit](https://github.com/pre-commit/pre-commit) to permit the latest version.
- [Release notes](https://github.com/pre-commit/pre-commit/releases)
- [Changelog](https://github.com/pre-commit/pre-commit/blob/master/CHANGELOG.md)
- [Commits](pre-commit/pre-commit@v2.15.0...v2.16.0)

---
updated-dependencies:
- dependency-name: pre-commit
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements_test.txt

@@ -2,7 +2,7 @@
 -r requirements_test_min.txt
 coveralls~=3.3
 coverage~=6.2
-pre-commit~=2.15;python_full_version>="3.6.2"
+pre-commit~=2.16;python_full_version>="3.6.2"
 tbump~=6.6.0
 pyenchant~=3.2
 pytest-cov~=3.0