Bump async-timeout from 4.0.3 to 5.0.1 (#384)

Bumps [async-timeout](https://github.com/aio-libs/async-timeout) from 4.0.3 to 5.0.1.
- [Release notes](https://github.com/aio-libs/async-timeout/releases)
- [Changelog](https://github.com/aio-libs/async-timeout/blob/master/CHANGES.rst)
- [Commits](aio-libs/async-timeout@v4.0.3...v5.0.1)

---
updated-dependencies:
- dependency-name: async-timeout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

poetry.lock

@@ -22,7 +22,7 @@ version = "0"
 [tool.poetry.dependencies]
 python = "^3.8"
 aiohttp = "^3.8"
-async-timeout = "^4"
+async-timeout = "^5"
 backoff = "<3"
 
 # Optional dependencies for deprecated-verify