Bump astroid to 3.0.0a4, update changelog

CONTRIBUTORS.txt

@@ -38,9 +38,9 @@ Contributors
 - Alexandre Fayolle <[email protected]>
 - Eevee (Alex Munroe) <[email protected]>
 - David Gilman <[email protected]>
+- Tushar Sadhwani <[email protected]>
 - Julien Jehannet <[email protected]>
 - Calen Pennington <[email protected]>
-- Tushar Sadhwani <[email protected]> <[email protected]>
 - Hugo van Kemenade <[email protected]>
 - Tim Martin <[email protected]>
 - Phil Schaf <[email protected]>
@@ -107,6 +107,7 @@ Contributors
 - markmcclain <[email protected]>
 - ioanatia <[email protected]>
 - grayjk <[email protected]>
+- alm <[email protected]>
 - adam-grant-hendry <[email protected]>
 - Zbigniew Jędrzejewski-Szmek <[email protected]>
 - Zac Hatfield-Dodds <[email protected]>
@@ -186,7 +187,6 @@ Contributors
 - Alexander Scheel <[email protected]>
 - Alexander Presnyakov <[email protected]>
 - Ahmed Azzaoui <[email protected]>
-- alm <[email protected]
 
 Co-Author
 ---------

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__ = "3.0.0a4-dev0"
+__version__ = "3.0.0a4"
 version = __version__

tbump.toml

@@ -1,7 +1,7 @@
 github_url = "https://github.com/pylint-dev/astroid"
 
 [version]
-current = "3.0.0a4-dev0"
+current = "3.0.0a4"
 regex = '''
 ^(?P<major>0|[1-9]\d*)
 \.