argocd was originally helm-installed by hand before ArgoCD existed to
manage it; client-side 3-way merge apply can't prune fields it never
saw in a last-applied-configuration, so a later chart bump left a stale
args on repo-server's copyutil init container (old shell-string command
lingering alongside the new plain cp command) -> cp got 4 args instead
of 3 -> 'No such file or directory' -> CrashLoopBackOff -> Degraded.
Same bug class as envoy-gateway (020b248). ServerSideApply=true tracks
field ownership properly and prunes the stray field on next sync.
duynguyen