Build(deps-dev): Bump mypy from 0.812 to 0.902

Bumps [mypy](https://github.com/python/mypy) from 0.812 to 0.902.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.812...v0.902)

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

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -29,7 +29,7 @@ packaging = ">=20.9"
 pytest = "^6.2.4"
 coverage = {extras = ["toml"], version = "^5.5"}
 safety = "^1.10.3"
-mypy = "^0.812"
+mypy = "^0.902"
 typeguard = "^2.12.1"
 xdoctest = {extras = ["colors"], version = "^0.15.4"}
 sphinx = "^3.5.4"