build(deps): bump websockets from 14.2 to 16.0 in /main/xiaozhi-server

Bumps [websockets](https://github.com/python-websockets/websockets) from 14.2 to 16.0.
- [Release notes](https://github.com/python-websockets/websockets/releases)
- [Commits](https://github.com/python-websockets/websockets/compare/14.2...16.0)

---
updated-dependencies:
- dependency-name: websockets
  dependency-version: '16.0'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

main/xiaozhi-server/requirements.txt

@@ -4,7 +4,7 @@ torch==2.2.2
 torchaudio==2.2.2
 numpy==1.26.4
 #--------- cozepy0.20.0要求websockets<15.0.0，以下暂时不推荐升级的依赖
-websockets==14.2
+websockets==16.0
 #--------- 以下是可升级的依赖
 pyyml==0.0.2
 silero_vad==6.1.0