Bump mypy from 0.982 to 0.990 (#355)

Bumps [mypy](https://github.com/python/mypy) from 0.982 to 0.990.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.982...v0.990)

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

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

requirements/ci.txt

@@ -1,5 +1,5 @@
 setuptools-git==1.2
-mypy==0.982; implementation_name=="cpython"
+mypy==0.990; implementation_name=="cpython"
 mypy-extensions==0.4.3; implementation_name=="cpython"
 
 -r ci-wheel.txt