Bump ws and @pm2/agent (#1867)

Bumps [ws](https://github.com/websockets/ws) and @pm2/agent. These dependencies needed to be updated together.

Updates `ws` from 7.4.6 to 7.5.10
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.4.6...7.5.10)

Updates `@pm2/agent` from 2.0.3 to 2.0.4

---
updated-dependencies:
- dependency-name: ws
  dependency-type: indirect
- dependency-name: "@pm2/agent"
  dependency-type: indirect
...

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