test: omit setting group for certificate tests on cockpit 330 and later #56

Job	Run time
Get info from role and PR to determine if and how to test	7s
Fedora-40/ansible-2.17	12m 8s
Fedora-41/ansible-2.17	11m 37s
CentOS-7-latest/ansible-2.9	9m 7s
CentOS-Stream-8/ansible-2.9	12m 12s
CentOS-Stream-8/ansible-2.16	11m 43s
CentOS-Stream-9/ansible-2.17	11m 13s
CentOS-Stream-10/ansible-2.17	12m 8s
	1h 20m 15s

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