Bump mypy from 1.8.0 to 1.15.0

Bumps [mypy](https://github.com/python/mypy) from 1.8.0 to 1.15.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.8.0...v1.15.0)

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

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

Author: dependabot[bot]

Pipfile

@@ -7,7 +7,7 @@ name = "pypi"
 requests = "*"
 
 [dev-packages]
-mypy = "1.8.0"
+mypy = "1.15.0"
 pytest = "*"
 sphinx = "*"
 build = "*"