Bump mypy from 1.4.1 to 1.5.1

Bumps [mypy](https://github.com/python/mypy) from 1.4.1 to 1.5.1.
- [Commits](python/mypy@v1.4.1...v1.5.1)

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

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

requirements-dev.txt

@@ -2,6 +2,6 @@ black[typed-ast]==23.7.0
 bumpversion~=0.6.0
 flake8~=6.1.0
 isort~=5.12.0
-mypy==1.4.1
+mypy==1.5.1
 pytest-cov~=4.1.0
 pytest>=4.6.0