Bump npm from 10.8.3 to 10.9.0 in /assets

Bumps [npm](https://github.com/npm/cli) from 10.8.3 to 10.9.0.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md)
- [Commits](npm/cli@v10.8.3...v10.9.0)

---
updated-dependencies:
- dependency-name: npm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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