Bump astroid to 4.0.0

Author: jacobtylerwalls

doc/whatsnew/4/4.0/index.rst

@@ -12,5 +12,10 @@
 Summary -- Release highlights
 =============================
 
+Pylint now supports Python 3.14.
+
+The required ``astroid`` version is now 4.0.0. See the
+`astroid changelog <https://pylint.readthedocs.io/projects/astroid/en/latest/changelog.html#what-s-new-in-astroid-4-0-0>`_
+for additional fixes, features, and performance improvements applicable to pylint.
 
 .. towncrier release notes start

pyproject.toml

@@ -40,7 +40,7 @@ dependencies = [
   # Also upgrade requirements_test_min.txt.
   # Pinned to dev of second minor update to allow editable installs and fix primer issues,
   # see https://github.com/pylint-dev/astroid/issues/1341
-  "astroid>=4.0.0rc0,<=4.1.0.dev0",
+  "astroid>=4,<=4.1.0.dev0",
   "colorama>=0.4.5; sys_platform=='win32'",
   "dill>=0.2; python_version<'3.11'",
   "dill>=0.3.6; python_version>='3.11'",

requirements_test_min.txt

@@ -1,6 +1,6 @@
 .[testutils,spelling]
 # astroid dependency is also defined in pyproject.toml
-astroid==4.0.0rc0  # Pinned to a specific version for tests
+astroid==4.0.0  # Pinned to a specific version for tests
 typing-extensions~=4.15
 py~=1.11.0
 pytest~=8.4