npm: bump undici

Bumps the npm_and_yarn group with 1 update in the /vscode-extension-self-contained directory: [undici](https://github.com/nodejs/undici).


Updates `undici` from 6.23.0 to 6.24.0
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.23.0...v6.24.0)

---
updated-dependencies:
- dependency-name: undici
  dependency-version: 6.24.0
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

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Author: dependabot[bot]