chore(deps): bump mypy from 1.14.1 to 1.15.0

Bumps [mypy](https://github.com/python/mypy) from 1.14.1 to 1.15.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.14.1...v1.15.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements/test.txt

@@ -10,7 +10,7 @@ pytest-snapshot
 pytest-asyncio
 httpx >=0.24, <0.29
 
-mypy ==1.14.1
+mypy ==1.15.0
 types-python-dateutil >=2.8.19.3
 types-requests >=2.28.1, <3.0
 types-click >=7.1.8, <9.0