Update mypy requirement from >=2.1.0 to >=2.3.0

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@v2.1.0...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]

requirements-dev.txt

@@ -9,7 +9,7 @@ pytest-asyncio>=1.4.0
 pylint>=4.0.6
 
 # Type checking
-mypy>=2.1.0
+mypy>=2.3.0
 types-PyYAML>=6.0.12.20260518
 
 # Code formatting