Update dependency mypy to v1.20.2

Author: renovate[bot]

pyproject.toml

@@ -35,7 +35,7 @@ dev = [
     "pytest>=7.1.2",
     "hypothesis>=6.23.3",
     "pytest-cov>=4.0.0",
-    "mypy==1.19.1",
+    "mypy==1.20.2",
     "pytest-parametrization>=2022",
     "pandas-pyarrow>=0.2.1",
     "pandas-stubs",