fix(kds): race condition on fill metadata (backport of #8872)

[kumahq]

Automatic cherry-pick of #8872 for branch release-2.2

Generated by action

cherry-picked commit 9346b2d
⚠️ ⚠️ ⚠️ Conflicts happened when cherry-picking! ⚠️ ⚠️ ⚠️

On branch release-2.2
Your branch is up to date with 'origin/release-2.2'.

You are currently cherry-picking commit 9346b2d5c.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   pkg/kds/v2/reconcile/reconciler.go

no changes added to commit (use "git add" and/or "git commit -a")