build(deps-dev): bump pre-commit from 2.14.1 to 2.15.0 in /bot

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 2.14.1 to 2.15.0.
- [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@v2.14.1...v2.15.0)

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

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

Author: dependabot[bot]

bot/requirements-dev.txt

@@ -1,6 +1,6 @@
 json-e==4.4.1
 jsonschema==3.2.0
-pre-commit==2.14.1
+pre-commit==2.15.0
 pytest==6.2.4
 pytest-responses==0.5.0
 responses==0.13.4