[v0.22] sync spec.Unschedulable field while syncing nodeChanges from virtual to host (#2430)

[loft-bot]

Backport from main to v0.22

Original PR Nr.: #2430

Backported Commits:

• 56e5de05 sync spec.Unschedulable field while syncing nodeChanges from virtual to host (#2430)

Original PR Description:

What issue type does this pull request address? (keep at least one, remove the others) /kind bugfix

What does this pull request do? Which issues does it resolve? (use resolves #<issue_number> if possible) resolves ENG-5601

Please provide a short message that should be published in the vcluster release notes Fixed an issue where vcluster would not allow cordoning a node from within the virtual cluster context

What else do we need to know?

[cbron]

@neogopher are we waiting to merge these backports ?