chore(deps-dev): update mypy requirement from 1.15.0 to 1.16.0

Updates the requirements on [mypy](https://github.com/python/mypy) to permit the latest version.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.15.0...v1.16.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.16.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -24,7 +24,7 @@ flake8-pytest-style = "2.1.0"
 ruff = "0.11.11"
 coverage = "7.8.2"
 black = "25.1.0"
-mypy = "1.15.0"
+mypy = "1.16.0"
 bandit = "1.8.3"
 xenon = "0.9.3"