Bump pylint to 2.16.0-b1, update changelog

Bump pylint to 2.16.0-b0, update changelog

Bump pylint to 2.15.10, update changelog (pylint-dev#8034)

* Bump pylint to 2.15.10, update changelog

* Update doc/whatsnew/2/2.15/index.rst

Bump pylint to 2.15.9, update changelog (pylint-dev#7952)

Bump pylint to 2.15.8, update changelog (pylint-dev#7899)

Bump pylint to 2.15.7, update changelog (pylint-dev#7845)

Release branch 2.15.6 (pylint-dev#7785)

* Bump pylint to 2.15.6, update changelog

Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>

Merge pull request pylint-dev#7660 from cdce8p/release-2.15.5

Release 2.15.5

Bump pylint to 2.15.4, update changelog

Bump pylint to 2.15.3, update changelog