Update dependency mypy to v2 (#43)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -52,7 +52,7 @@ namespaces = false
 dev = [
     "pytest==9.0.3",
     "pytest-cov==7.1.0",
-    "mypy==1.20.2",
+    "mypy==2.0.0",
     "flake8==7.3.0",
     "black==26.3.1",
     "ruff==0.15.12",