build(deps-dev): bump mypy from 0.950 to 1.4.1 (#34)

Bumps [mypy](https://github.com/python/mypy) from 0.950 to 1.4.1.
- [Commits](python/mypy@v0.950...v1.4.1)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -14,7 +14,7 @@ quart =  ">= 0.17.0, < 1.0.0"
 [tool.poetry.group.dev.dependencies]
 shed = ">=0.9.5,<2023.7.0"
 pylint = "^2.13.8"
-mypy = "^0.950"
+mypy = ">=0.950,<1.5"
 pytest = "^7.1.2"
 pytest-asyncio = "^0.18.3"
 pytest-cov = "^4.1.0"