⬆ Update mypy requirement from 0.971 to 1.4.1

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@v0.971...v1.4.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:development
...

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

pyproject.toml

@@ -37,7 +37,7 @@ sqlalchemy2-stubs = {version = "*", allow-prereleases = true}
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.0.1"
-mypy = "0.971"
+mypy = "1.4.1"
 black = "^22.10.0"
 mkdocs = "^1.2.1"
 mkdocs-material = "^8.1.4"