Bump astroid to 4.0.0-a0

Author: jacobtylerwalls

pyproject.toml

@@ -39,7 +39,7 @@ 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>=3.3.8,<=4.0.0.dev0",
+  "astroid>=4.0.0a0,<=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==3.3.8  # Pinned to a specific version for tests
+astroid==4.0.0-a0  # Pinned to a specific version for tests
 typing-extensions~=4.12
 py~=1.11.0
 pytest~=8.3