build(deps-dev): bump ws from 8.18.1 to 8.21.1 in /Modularity

Bumps [ws](https://github.com/websockets/ws) from 8.18.1 to 8.21.1.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.18.1...8.21.1)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 8.21.1
  dependency-type: indirect
...

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

Author: dependabot[bot]