Bump astroid to 2.15.7, update changelog

Author: jacobtylerwalls

ChangeLog

@@ -2,19 +2,14 @@
 astroid's ChangeLog
 ===================
 
-What's New in astroid 2.16.0?
+What's New in astroid 2.15.8?
 =============================
 Release date: TBA
 
 
-* Fix a regression in 2.12.0 where settings in AstroidManager would be ignored.
-  Most notably this addresses pylint-dev/pylint#7433.
-
-  Refs #2204
-
 What's New in astroid 2.15.7?
 =============================
-Release date: TBA
+Release date: 2023-09-23
 
 * Fix a crash when inferring a ``typing.TypeVar`` call.
 
@@ -42,6 +37,11 @@ Release date: 2023-07-08
 
   Closes pylint-dev/pylint#8748
 
+* Fix a regression in 2.12.0 where settings in AstroidManager would be ignored.
+  Most notably this addresses pylint-dev/pylint#7433.
+
+  Refs #2204
+
 
 What's New in astroid 2.15.5?
 =============================

astroid/__pkginfo__.py

@@ -2,5 +2,5 @@
 # For details: https://github.com/PyCQA/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/PyCQA/astroid/blob/main/CONTRIBUTORS.txt
 
-__version__ = "2.15.6"
+__version__ = "2.15.7"
 version = __version__

tbump.toml

@@ -1,7 +1,7 @@
 github_url = "https://github.com/PyCQA/astroid"
 
 [version]
-current = "2.15.6"
+current = "2.15.7"
 regex = '''
 ^(?P<major>0|[1-9]\d*)
 \.