bump(requirements): update mypy requirement (#121)

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@v1.14.0...v1.15.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -62,7 +62,7 @@ requires-python = ">=3.8"
 
 [project.optional-dependencies]
 dev = [
-  "mypy~=1.14.0",
+  "mypy>=1.14,<1.16",
   "isort==5.13.2",
   "mypy-extensions>=0.4.3",
   "pre-commit>=2.20.0",