build(deps): bump multidict from 5.2.0 to 6.0.5

Bumps [multidict](https://github.com/aio-libs/multidict) from 5.2.0 to 6.0.5.
- [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...v6.0.5)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -9,7 +9,7 @@ imgurpython == 1.1.7
 isodate == 0.6.0
 lxml == 4.9.2
 mcstatus == 6.5.0
-multidict == 5.2.0
+multidict == 6.0.5
 nltk == 3.6.6
 psutil == 5.8.0
 py-irclib == 0.3.0