Chore(deps-dev): Update mypy requirement from <1.15 to <1.16

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@v0.1.0...v1.15.0)

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

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

Author: dependabot[bot]

pyproject.toml

@@ -194,4 +194,4 @@ codespell = "<2.5"
 ruff = "<0.10"
 
 [tool.poetry.group.typing.dependencies]
-mypy = "<1.15"
+mypy = "<1.16"