module: update mypy to version 0.950

Updates the requirements on [mypy](https://github.com/python/mypy) to permit the latest version (#67).
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](https://github.com/python/mypy/compare/v0.942...v0.950)

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

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pyproject.toml

@@ -16,7 +16,7 @@ pyyaml = "6.0"
 requests = "~2.27"
 
 [tool.poetry.dev-dependencies]
-mypy = "0.942"
+mypy = "0.950"
 pylint = "~2.13"
 rope = "~1.0"
 types-PyYAML = "~6.0"