Bump ws and pleasantest

Bumps [ws](https://github.com/websockets/ws) to 8.18.2 and updates ancestor dependency [pleasantest](https://github.com/cloudfour/pleasantest). These dependencies need to be updated together.


Updates `ws` from 8.9.0 to 8.18.2
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.9.0...8.18.2)

Updates `pleasantest` from 3.1.0 to 5.0.0
- [Release notes](https://github.com/cloudfour/pleasantest/releases)
- [Changelog](https://github.com/cloudfour/pleasantest/blob/main/CHANGELOG.md)
- [Commits](cloudfour/pleasantest@v3.1.0...v5.0.0)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.18.2
  dependency-type: indirect
- dependency-name: pleasantest
  dependency-version: 5.0.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]