Bump types-cryptography from 3.3.18 to 3.3.21 (#646)

Bumps [types-cryptography](https://github.com/python/typeshed) from 3.3.18 to 3.3.21.
- [Release notes](https://github.com/python/typeshed/releases)
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-cryptography
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

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

pyproject.toml

@@ -99,7 +99,7 @@ types-ujson = "^4.2.0"
 types-PyMySQL = "^1.0.19"
 types-ipaddress = "^1.0.1"
 types-enum34 = "^1.1.1"
-types-cryptography = "^3.3.9"
+types-cryptography = "^3.3.21"
 types-orjson = "^3.6.1"
 types-aiofiles = "^0.8.8"
 types-pkg-resources = "^0.1.3"