Bump astroid to 3.0.0a5, update changelog

Author: Pierre-Sassoulas

CONTRIBUTORS.txt

@@ -137,6 +137,7 @@ Contributors
 - Kian Meng, Ang <kianmeng.ang@gmail.com>
 - Kai Mueller <15907922+kasium@users.noreply.github.com>
 - Jörg Thalheim <Mic92@users.noreply.github.com>
+- Josef Kemetmüller <josef.kemetmueller@gmail.com>
 - Jonathan Striebel <jstriebel@users.noreply.github.com>
 - John Belmonte <john@neggie.net>
 - Jeff Widman <jeff@jeffwidman.com>
@@ -182,6 +183,7 @@ Contributors
 - Aru Sahni <arusahni@gmail.com>
 - Artsiom Kaval <lezeroq@gmail.com>
 - Anubhav <35621759+anubh-v@users.noreply.github.com>
+- Antonio <antonioglez-23@hotmail.com>
 - Antoine Boellinger <aboellinger@hotmail.com>
 - Alphadelta14 <alpha@alphaservcomputing.solutions>
 - Alexander Scheel <alexander.m.scheel@gmail.com>

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__ = "3.0.0a5-dev0"
+__version__ = "3.0.0a5"
 version = __version__

tbump.toml

@@ -1,7 +1,7 @@
 github_url = "https://github.com/pylint-dev/astroid"
 
 [version]
-current = "3.0.0a5-dev0"
+current = "3.0.0a5"
 regex = '''
 ^(?P<major>0|[1-9]\d*)
 \.