Update mypy requirement from ~=1.14.1 to ~=1.18.2

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@v1.14.1...v1.18.2)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.18.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements-test.txt

@@ -2,7 +2,7 @@
 pytest~=8.3.4
 pytest_asyncio~=0.25.2
 pytest-rerunfailures~=15.0
-mypy~=1.14.1
+mypy~=1.18.2
 ruff~=0.9.1
 types-setuptools~=75.8.0.20250110
 # botright~=0.5.1