rubocop: fix service tests offenses
rubocop: fix service tests offenses

Signed-off-by: Federico Simoncelli <d5e4d7da1feaf2c79fa6885a7451e8a6a68321fc@redhat.com>

everalbum/kubeclient,simon3z/kubeclient,fabiokr/kubeclient,zendesk/kubeclient,zakiva/kubeclient,moolitayer/kubeclient,abonas/kubeclient,dkorn/kubeclient