Ensure that prometheus data directory exists, prometheus does not cre… #809

Job	Run time
kitchen / prepare-matrix	2s
kitchen / run-kitchen-tests (centos-stream-9)	2m 25s
kitchen / run-kitchen-tests (centos-stream-10)	2m 2s
kitchen / run-kitchen-tests (fedora-40)	1m 53s
kitchen / run-kitchen-tests (debian-12)	1m 43s
kitchen / run-kitchen-tests (ubuntu-2204)	1m 58s
kitchen / run-kitchen-tests (ubuntu-2404)	1m 59s
	12m 2s

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