build(deps-dev): bump mypy from 1.11.2 to 1.12.1

Bumps [mypy](https://github.com/python/mypy) from 1.11.2 to 1.12.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.11.2...v1.12.1)

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

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

Author: dependabot[bot]

requirements-dev.txt

@@ -56,7 +56,7 @@ markupsafe==2.1.5
     # via jinja2
 multidict==6.1.0
     # via yarl
-mypy==1.11.2
+mypy==1.12.1
     # via -r requirements-dev.in
 mypy-extensions==1.0.0
     # via mypy