Bump multidict from 5.2.0 to 6.0.1

Bumps [multidict](https://github.com/aio-libs/multidict) from 5.2.0 to 6.0.1.
- [Release notes](https://github.com/aio-libs/multidict/releases)
- [Changelog](https://github.com/aio-libs/multidict/blob/master/CHANGES.rst)
- [Commits](aio-libs/multidict@v5.2.0...v6.0.1)

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

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

Author: dependabot[bot]

requirements.txt

@@ -26,7 +26,7 @@ fonttools==4.28.5
     # via fdiff (setup.py)
 idna==3.3
     # via yarl
-multidict==5.2.0
+multidict==6.0.1
     # via
     #   aiohttp
     #   yarl