Bump websockets from 8.0.2 to 9.1

Bumps [websockets](https://github.com/aaugustin/websockets) from 8.0.2 to 9.1.
- [Release notes](https://github.com/aaugustin/websockets/releases)
- [Changelog](https://github.com/aaugustin/websockets/blob/9.1/docs/changelog.rst)
- [Commits](https://github.com/aaugustin/websockets/compare/8.0.2...9.1)

---
updated-dependencies:
- dependency-name: websockets
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -25,4 +25,4 @@ tzlocal==2.0.0
 urllib3==1.25.6
 uvicorn==0.9.1
 uvloop==0.14.0rc1
-websockets==8.0.2
+websockets==9.1