[Security] Bump ws from 7.4.1 to 7.4.6 in /build

Bumps [ws](https://github.com/websockets/ws) from 7.4.1 to 7.4.6. **This update includes security fixes.**
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](https://github.com/websockets/ws/compare/7.4.1...7.4.6

)

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