OPSEXP-3235 refactor: extract db common vars to the main playbook #3542

Job	Run time
Ensure requirements are met	2m 40s
Test adf_app role on ubuntu:24.04	2m 47s
Test search_enterprise role on ubuntu:24.04	5m 51s
${{ matrix.molecule_scenario.desc }}	0s
Test repository role on ubuntu:24.04	5m 20s
Test sfs role on ubuntu:24.04	3m 2s
Test sync role on ubuntu:24.04	11m 37s
Test trouter role on ubuntu:24.04	3m 46s
Test audit_storage role on ubuntu:24.04	4m 27s
Test adf_app role on rockylinux/rockylinux:9.5	2m 53s
Test search_enterprise role on rockylinux/rockylinux:9.5	7m 28s
Test repository role on rockylinux/rockylinux:9.5	6m 3s
Test sfs role on rockylinux/rockylinux:9.5	2m 13s
Test sync role on rockylinux/rockylinux:9.5	10m 57s
Test trouter role on rockylinux/rockylinux:9.5	4m 29s
Test audit_storage role on rockylinux/rockylinux:9.5	5m 22s
Test ${{ matrix.scenario.name }} scenario on ${{ matrix.molecule_distro.image }}	0s
	1h 18m 55s

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