build(deps): bump pylint from 2.7.3 to 2.7.4

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.7.3 to 2.7.4.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](pylint-dev/pylint@pylint-2.7.3...pylint-2.7.4)

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