Bump pylint to 2.15.5, update changelog

Author: cdce8p

doc/whatsnew/2/2.15/index.rst

@@ -29,6 +29,54 @@ Marc Byrne became a maintainer, welcome to the team !
 
 .. towncrier release notes start
 
+What's new in Pylint 2.15.5?
+----------------------------
+Release date: 2022-10-21
+
+
+False Positives Fixed
+---------------------
+
+- Fix a false positive for ``simplify-boolean-expression`` when multiple values
+  are inferred for a constant.
+
+  Closes #7626 (`#7626 <https://github.com/PyCQA/pylint/issues/7626>`_)
+
+
+
+Other Bug Fixes
+---------------
+
+- Remove ``__index__`` dunder method call from ``unnecessary-dunder-call``
+  check.
+
+  Closes #6795 (`#6795 <https://github.com/PyCQA/pylint/issues/6795>`_)
+
+- Fixed a multi-processing crash that prevents using any more than 1 thread on
+  MacOS.
+
+  The returned module objects and errors that were cached by the linter plugin
+  loader
+  cannot be reliably pickled. This means that ``dill`` would throw an error
+  when
+  attempting to serialise the linter object for multi-processing use.
+
+  Closes #7635. (`#7635 <https://github.com/PyCQA/pylint/issues/7635>`_)
+
+
+
+Other Changes
+-------------
+
+- Add a keyword-only ``compare_constants`` argument to ``safe_infer``.
+
+  Refs #7626 (`#7626 <https://github.com/PyCQA/pylint/issues/7626>`_)
+
+- Sort ``--generated-rcfile`` output.
+
+  Refs #7655 (`#7655 <https://github.com/PyCQA/pylint/issues/7655>`_)
+
+
 What's new in Pylint 2.15.4?
 ----------------------------
 Release date: 2022-10-10

doc/whatsnew/fragments/6795.bugfix

@@ -9,7 +9,7 @@
 
 from __future__ import annotations
 
-__version__ = "2.15.4"
+__version__ = "2.15.5"
 
 
 def get_numversion_from_version(v: str) -> tuple[int, int, int]:

doc/whatsnew/fragments/7626.false_positive

@@ -1,7 +1,7 @@
 github_url = "https://github.com/PyCQA/pylint"
 
 [version]
-current = "2.15.4"
+current = "2.15.5"
 regex = '''
 ^(?P<major>0|[1-9]\d*)
 \.