Bump mypy from 1.19.1 to 1.20.0

Bumps [mypy](https://github.com/python/mypy) from 1.19.1 to 1.20.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.19.1...v1.20.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -10,7 +10,7 @@ flake8==7.3.0
 flake8-coding==1.3.2
 pre-commit==4.5.1
 isort==8.0.1
-mypy==1.19.1
+mypy==1.20.0
 pylint==4.0.5
 bandit==1.9.4
 pydocstringformatter==0.7.5