Bump multidict from 6.0.5 to 6.1.0

Bumps [multidict](https://github.com/aio-libs/multidict) from 6.0.5 to 6.1.0.
- [Release notes](https://github.com/aio-libs/multidict/releases)
- [Changelog](https://github.com/aio-libs/multidict/blob/master/CHANGES.rst)
- [Commits](aio-libs/multidict@v6.0.5...v6.1.0)

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

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

Author: dependabot[bot]