Bump pylint from 2.13.8 to 2.13.9 (mercos#141)

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.13.8 to 2.13.9.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/main/ChangeLog)
- [Commits](pylint-dev/pylint@v2.13.8...v2.13.9)

---
updated-dependencies:
- dependency-name: pylint
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-pylint==2.13.8
+pylint==2.13.9
 pylint-django==2.5.3
 django==3.2.13
 pylint-celery==0.3