Bump chardet from 3.0.4 to 4.0.0 (#593)

Bumps [chardet](https://github.com/chardet/chardet) from 3.0.4 to 4.0.0.
- [Release notes](https://github.com/chardet/chardet/releases)
- [Commits](chardet/chardet@3.0.4...4.0.0)

---
updated-dependencies:
- dependency-name: chardet
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

@@ -18,7 +18,7 @@ pytest-mock==3.6.1
 pytest-sugar==0.9.4
 aiohttp<3.9
 multidict==5.2.0
-chardet==3.0.4
+chardet==4.0.0
 yarl==1.7.2
 aiomcache==0.6.0
 mypy==0.910