Bump mypy from 1.20.0 to 1.20.1 (#3266)

Author: dependabot[bot]

pyproject.toml

@@ -16,7 +16,7 @@ dev = [
     "freezegun>=1.5.0,<1.6",
     "google-api-python-client-stubs>=1.29.0,<2",
     "Jinja2>=3.1.2,<4",
-    "mypy>=1.4.1,<2",
+    "mypy>=1.20.1,<2",
     "pyfakefs>=6.2.0,<7",
     "pytest-alembic>=0.12.0,<0.13",
     "pytest-asyncio>=1.1.0,<2",