chore: bump @npmcli/arborist from 5.4.0 to 5.6.0 (#330)

Bumps [@npmcli/arborist](https://github.com/npm/cli/tree/HEAD/workspaces/arborist) from 5.4.0 to 5.6.0.
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/workspaces/arborist/CHANGELOG.md)
- [Commits](https://github.com/npm/cli/commits/v5.6.0/workspaces/arborist)

---
updated-dependencies:
- dependency-name: "@npmcli/arborist"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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