Bump mypy from 0.910 to 0.961 (#2269)

Bump mypy from 0.910 to 0.961 (#2269)

* Bump mypy from 0.910 to 0.961

Bumps [mypy](https://github.com/python/mypy) from 0.910 to 0.961.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](https://github.com/python/mypy/compare/v0.910...v0.961)

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

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* Handle py37 iscoroutine type guard oddity

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