feat: add storage deletion workflow with conditional execution #2948

Job	Run time
discover	6s
uv (understack-workflows)	19s
uv (ironic-understack)	19s
uv (nova-understack)	23s
uv (neutron-understack)	22s
uv (diff-nautobot-understack)	13s
uv (understack-flavor-matcher)	10s
uv (cinder-understack)	24s
coverage-upload	24s
	2m 40s

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