chore(deps): update dependency mypy to v2

Author: renovate[bot]

pyproject.toml

@@ -69,7 +69,7 @@ types = [
   "django-stubs-ext==6.0.3",
   "django-stubs[compatible-mypy]==6.0.3",
   "djangorestframework-stubs==3.16.9",
-  "mypy==1.20.2",
+  "mypy==2.0.0",
   "PyGObject-stubs==2.17.0",
   "types-dateparser==1.4.0.20260408",
   "types-docutils==0.22.3.20260408",