Bump astroid to 4.0.3, update changelog

Author: jacobtylerwalls

ChangeLog

@@ -9,10 +9,16 @@ Release date: TBA
 
 
 
-What's New in astroid 4.0.3?
+What's New in astroid 4.0.4?
 ============================
 Release date: TBA
 
+
+
+What's New in astroid 4.0.3?
+============================
+Release date: 2026-01-03
+
 * Fix inference of ``IfExp`` (ternary expression) nodes to avoid prematurely narrowing
   results in the face of inference ambiguity.
 

astroid/__pkginfo__.py

@@ -2,5 +2,5 @@
 # For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
 
-__version__ = "4.0.2"
+__version__ = "4.0.3"
 version = __version__

tbump.toml

@@ -1,7 +1,7 @@
 github_url = "https://github.com/pylint-dev/astroid"
 
 [version]
-current = "4.0.2"
+current = "4.0.3"
 regex = '''
 ^(?P<major>0|[1-9]\d*)
 \.