build(deps): bump mypy from 1.20.0 to 1.20.1

Bumps [mypy](https://github.com/python/mypy) from 1.20.0 to 1.20.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.20.0...v1.20.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.20.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -20,7 +20,7 @@ docs = [
     "pdoc==16.0.0",
 ]
 lint = [
-    "mypy==1.20.0",
+    "mypy==1.20.1",
     "pre-commit==4.5.1",
     "ruff==0.15.10",
 ]