Due to multi-site Ceph object resources (realms, zonegroups, zones)
reconciliation CLI commands being proxied through CephCluster's Mgr pods
in Multus-based scenarios, return codes were being additionally wrapped
by K8S' command streams and weren't adequately handled in-code, causing
reconciliation of CephObject(Realm|ZoneGroup|Zone) resources to fail, as
an exit code of 0, instead of the expected syscall.ENOENT (2) was returned.
Fixes#12833
Signed-off-by: zer0def <zv0uzqbqnncivw0afjsx79jmd19shpps3r5f2vjc6yv@definedaszero.xyz>