chore(deps): bump multidict from 6.8.0 to 6.9.1 (#1528)

Bumps [multidict](https://github.com/aio-libs/multidict) from 6.8.0 to 6.9.1.
- [Release notes](https://github.com/aio-libs/multidict/releases)
- [Changelog](https://github.com/aio-libs/multidict/blob/master/CHANGES.rst)
- [Commits](aio-libs/multidict@v6.8.0...v6.9.1)

---
updated-dependencies:
- dependency-name: multidict
  dependency-version: 6.9.1
  dependency-type: indirect
...

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

Author: dependabot[bot]