Bump mypy from 1.11.2 to 1.12.1 in the mypy group

Bumps the mypy group with 1 update: [mypy](https://github.com/python/mypy).


Updates `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
  dependency-group: mypy
...

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

Author: dependabot[bot]

poetry.lock

@@ -26,7 +26,7 @@ python = ">=3.8.1"
 typing-extensions = "^4.10.0"
 
 [tool.poetry.group.dev.dependencies]
-mypy = ">=1.9,<1.12"
+mypy = ">=1.9,<1.13"
 poethepoet = ">=0.27.0,<0.30"
 ruff = ">=0.5.1,<0.7.0"