Bump pylint from 2.14.5 to 2.15.0

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.14.5 to 2.15.0.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Commits](https://github.com/PyCQA/pylint/compare/v2.14.5...v2.15.0)

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

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

requirements-dev.txt

@@ -2,7 +2,7 @@ mock==4.0.3
 nose2[coverage_plugin]==0.12.0
 cov-core==1.15.0
 black==22.6.0
-pylint==2.14.5
+pylint==2.15.0
 splinter==0.18.1
 selenium==4.4.3
 twine==4.0.1