Bump anyio from 3.3.2 to 3.3.4 (#414)

Bumps [anyio](https://github.com/agronholm/anyio) from 3.3.2 to 3.3.4.
- [Release notes](https://github.com/agronholm/anyio/releases)
- [Changelog](https://github.com/agronholm/anyio/blob/master/docs/versionhistory.rst)
- [Commits](agronholm/anyio@3.3.2...3.3.4)

---
updated-dependencies:
- dependency-name: anyio
  dependency-type: direct:production
  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>
Co-authored-by: Tom Christie <tom@tomchristie.com>

Author: dependabot[bot]

requirements.txt

@@ -22,7 +22,7 @@ twine==3.4.2
 wheel==0.37.0
 
 # Tests & Linting
-anyio==3.3.2
+anyio==3.3.4
 autoflake==1.4
 black==21.10b0
 coverage==5.5