Bump pycares from 4.2.0 to 4.2.1

Bumps [pycares](https://github.com/saghul/pycares) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/saghul/pycares/releases)
- [Changelog](https://github.com/saghul/pycares/blob/master/ChangeLog)
- [Commits](saghul/pycares@pycares-4.2.0...pycares-4.2.1)

---
updated-dependencies:
- dependency-name: pycares
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -30,7 +30,7 @@ multidict==6.0.2
     # via
     #   aiohttp
     #   yarl
-pycares==4.2.0
+pycares==4.2.1
     # via aiodns
 pycparser==2.21
     # via cffi