feat(netbox): support Netbox v4.2

[pdonias]

Fixes #8280
See Zammad#34699
See https://xcp-ng.org/forum/topic/10236/netbox-version-4-2-1-not-supported
See https://github.com/netbox-community/netbox/releases/tag/v4.2.0

Description

Nothing to do because:

• Clusters: site is replaced by scope (a region, site, site group or location) but we don't auto-assign site on clusters.
• VMs: site field still exists. We don't assign it except for old versions where we use the cluster's site.
• Prefixes: site is also replaced by scope but prefixes are created manually.

Checklist

• Commit
  • Title follows commit conventions
  • Reference the relevant issue (Fixes #007, See xoa-support#42, See https://...)
  • If bug fix, add Introduced by
• Changelog
  • If visible by XOA users, add changelog entry
  • Update "Packages to release" in CHANGELOG.unreleased.md
• PR
  • If UI changes, add screenshots
  • If not finished or not tested, open as Draft

Review process

This 2-passes review process aims to:

• develop skills of junior reviewers
• limit the workload for senior reviewers
• limit the number of unnecessary changes by the author

1. The author creates a PR.
2. Review process:
   1. The author assigns the junior reviewer.
   2. The junior reviewer conducts their review:
      • Resolves their comments if they are addressed.
      • Adds comments if necessary or approves the PR.
   3. The junior reviewer assigns the senior reviewer.
   4. The senior reviewer conducts their review:
      • If there are no unresolved comments on the PR → merge.
      • Otherwise, we continue with 3.
3. The author responds to comments and/or makes corrections, and we go back to 2.

Notes:

1. The author can request a review at any time, even if the PR is still a Draft.
2. In theory, there should not be more than one reviewer at a time.
3. The author should not make any changes:
   • When a reviewer is assigned.
   • Between the junior and senior reviews.