Fix Dependabot security vulnerabilities in undici

- Added npm overrides for undici to resolve 6 open alerts
- undici@7.22.0 -> ^7.24.0 (via @vscode/vsce -> cheerio)
- undici@6.23.0 -> ^6.24.0 (via release-it)
- Addresses WebSocket overflow (high), HTTP smuggling (medium),
  and CRLF injection (medium) vulnerabilities

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: priyanshu92