test: omit setting group for certificate tests on cockpit 330 and later #54

Job	Run time
Get info from role and PR to determine if and how to test	4s
Fedora-40/ansible-2.17	12m 42s
Fedora-41/ansible-2.17	11m 38s
CentOS-7-latest/ansible-2.9	8m 36s
CentOS-Stream-8/ansible-2.9	11m 42s
CentOS-Stream-8/ansible-2.16	11m 38s
CentOS-Stream-9/ansible-2.17	10m 12s
CentOS-Stream-10/ansible-2.17	11m 38s
	1h 18m 10s

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