Bump charset-normalizer from 2.0.11 to 2.1.0 (#228)

Bumps [charset-normalizer](https://github.com/ousret/charset_normalizer) from 2.0.11 to 2.1.0.
- [Release notes](https://github.com/ousret/charset_normalizer/releases)
- [Changelog](https://github.com/Ousret/charset_normalizer/blob/master/CHANGELOG.md)
- [Commits](jawah/charset_normalizer@2.0.11...2.1.0)

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

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

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

requirements/base.txt

@@ -7,7 +7,7 @@ async-timeout==4.0.2
 asynctest==0.13.0; python_version<"3.8"
 Brotli==1.0.9
 cchardet==2.1.7
-charset-normalizer==2.0.11
+charset-normalizer==2.1.0
 frozenlist==1.3.0
 gunicorn==20.1.0
 uvloop==0.14.0; platform_system!="Windows" and implementation_name=="cpython" and python_version<"3.9" # MagicStack/uvloop#14