chore(deps-dev): bump pylint from 2.11.1 to 2.12.1 (#8420)

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.11.1 to 2.12.1.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/main/ChangeLog)
- [Commits](pylint-dev/pylint@v2.11.1...v2.12.1)

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

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

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

Author: dependabot[bot]

poetry.lock

@@ -129,7 +129,7 @@ Flask-Migrate = "2.7.0"
 
 [tool.poetry.dev-dependencies]
 nose = "1.3.7"
-pylint = "2.11.1"
+pylint = "2.12.1"
 pep8 = "1.7.1"
 isort = "5.10.1"
 black = "21.11b1"