Bump mypy from 0.812 to 0.910 (#598)

Bumps [mypy](https://github.com/python/mypy) from 0.812 to 0.910.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.812...v0.910)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

requirements-dev.txt

@@ -21,5 +21,5 @@ multidict==4.7.6
 chardet==3.0.4
 yarl==1.6.3
 aiomcache==0.6.0
-mypy==0.812
+mypy==0.910
 typing-extensions==3.10.0.1