build(deps): bump websocket-extensions from 0.1.3 to 0.1.4 in /vue-app

Bumps [websocket-extensions](https://github.com/faye/websocket-extensions-node) from 0.1.3 to 0.1.4.
- [Release notes](https://github.com/faye/websocket-extensions-node/releases)
- [Changelog](https://github.com/faye/websocket-extensions-node/blob/main/CHANGELOG.md)
- [Commits](faye/websocket-extensions-node@0.1.3...0.1.4)

---
updated-dependencies:
- dependency-name: websocket-extensions
  dependency-type: indirect
...

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Author: dependabot[bot]