chore(deps-dev): update mypy requirement

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@v2.2.0...v2.3.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.3.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

packages/serialization/multipart/requirements-dev.txt

@@ -4,6 +4,6 @@
 yapf>=0.43.0,<0.44.0
 isort>=8.0.1,<9.0.0
 pylint>=4.0.6,<5.0.0
-mypy>=2.2.0,<3.0.0
+mypy>=2.3.0,<3.0.0
 pytest>=9.1.1,<10.0.0
 pytest-asyncio>=1.4.0,<1.5