Bump mypy from 1.9.0 to 1.15.0

Bumps [mypy](https://github.com/python/mypy) from 1.9.0 to 1.15.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@1.9.0...v1.15.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

setup.cfg

@@ -49,7 +49,7 @@ package_dir =
 [options.extras_require]
 dev =
     bump2version==1.0.1
-    mypy==1.9.0
+    mypy==1.15.0
     parameterized==0.9.0
     pre-commit==3.5.0; python_version < "3.9"
     pre-commit==3.7.0; python_version >= "3.9"