Bump mypy from 1.1.1 to 1.2.0

Bumps [mypy](https://github.com/python/mypy) from 1.1.1 to 1.2.0.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v1.1.1...v1.2.0)

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

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

Author: dependabot[bot]

requirements-dev.txt

@@ -5,7 +5,7 @@ colorama==0.4.6
 flake8==6.0.0
 iniconfig==2.0.0
 mccabe==0.7.0
-mypy==1.1.1
+mypy==1.2.0
 mypy-extensions==1.0.0
 packaging==23.0
 pluggy==1.0.0