Bump multidict from 6.0.2 to 6.0.4 (#891)

Bumps [multidict](https://github.com/aio-libs/multidict) from 6.0.2 to 6.0.4.
- [Release notes](https://github.com/aio-libs/multidict/releases)
- [Changelog](https://github.com/aio-libs/multidict/blob/master/CHANGES.rst)
- [Commits](https://github.com/aio-libs/multidict/compare/v6.0.2...v6.0.4)

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

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

requirements.txt

@@ -15,7 +15,7 @@ Jinja2==3.1.2
 lxml==4.9.1
 MarkupSafe==2.1.1
 mock==4.0.3
-multidict==6.0.2
+multidict==6.0.4
 pycountry==22.3.5
 PyPDF2==2.10.8
 PySocks==1.7.1