Bump sockjs from 0.3.15 to 0.3.24 in /client

Bumps [sockjs](https://github.com/sockjs/sockjs-node) from 0.3.15 to 0.3.24.
- [Release notes](https://github.com/sockjs/sockjs-node/releases)
- [Changelog](https://github.com/sockjs/sockjs-node/blob/v0.3.24/Changelog)
- [Commits](sockjs/sockjs-node@v0.3.15...v0.3.24)

---
updated-dependencies:
- dependency-name: sockjs
  dependency-type: indirect
...

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