chore: Update mypy requirement from ==1.18.2 to ==1.19.1

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@v1.18.2...v1.19.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.19.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

pyproject.toml

@@ -37,7 +37,7 @@ pytest = ">=2.8"
 pytest-cov = ">=2.4.0"
 pytest-mypy = "==1.0.1"
 pytest-asyncio = ">=0.21.0"
-mypy = "==1.18.2"
+mypy = "==1.19.1"
 pycodestyle = "^2.12.1"
 isort = ">=5.13.2,<7.0.0"