Use whyrun-safe ruby_blocks in sonatype nexus cookbook #893

Job	Run time
kitchen / prepare-matrix	3s
kitchen / run-kitchen-tests (centos-stream-10)	2m 0s
kitchen / run-kitchen-tests (centos-stream-9)	2m 23s
kitchen / run-kitchen-tests (ubuntu-2204)	1m 55s
kitchen / run-kitchen-tests (ubuntu-2404)	1m 54s
kitchen / run-kitchen-tests (debian-12)	1m 36s
kitchen / run-kitchen-tests (fedora-40)	1m 58s
	11m 49s

Provide feedback