Update pylint requirement from ~=2.7.2 to ~=2.12.2

Updates the requirements on [pylint](https://github.com/PyCQA/pylint) to permit the latest version.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/main/ChangeLog)
- [Commits](pylint-dev/pylint@pylint-2.7.2...v2.12.2)

---
updated-dependencies:
- dependency-name: pylint
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -11,6 +11,6 @@ mypy
 onesignal-sdk~=1.0.0
 psycopg2-binary~=2.8.6
 pylint-quotes~=0.2.1
-pylint~=2.7.2
+pylint~=2.12.2
 sentry-sdk~=1.0.0
 sqlalchemy[mypy]