chore(deps): update dependency mypy to v1.19.0

Author: renovate[bot]

pyproject.toml

@@ -65,7 +65,7 @@ types = [
   "django-stubs-ext==5.2.7",
   "django-stubs[compatible-mypy]==5.2.7",
   "djangorestframework-stubs==3.16.5",
-  "mypy==1.18.2",
+  "mypy==1.19.0",
   "PyGObject-stubs==2.14.0",
   "types-dateparser==1.2.2.20250809",
   "types-docutils==0.22.3.20251115",