Bump multidict from 6.6.3 to 6.6.4

Bumps [multidict](https://github.com/aio-libs/multidict) from 6.6.3 to 6.6.4.
- [Release notes](https://github.com/aio-libs/multidict/releases)
- [Changelog](https://github.com/aio-libs/multidict/blob/master/CHANGES.rst)
- [Commits](aio-libs/multidict@v6.6.3...v6.6.4)

---
updated-dependencies:
- dependency-name: multidict
  dependency-version: 6.6.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/requirements.txt

@@ -106,7 +106,7 @@ msal==1.33.0
     #   msal-extensions
 msal-extensions==1.3.1
     # via azure-identity
-multidict==6.6.3
+multidict==6.6.4
     # via
     #   aiohttp
     #   yarl