Add `spec_helper` for release template specs #218

Job	Run time
unit_specs-director (mysql)	12m 20s
unit_specs (common:parallel)	54s
unit_specs (core:parallel)	52s
unit_specs-director (postgresql)	4m 7s
unit_specs (dev:parallel)	52s
unit_specs (director-core:parallel)	54s
unit_specs (monitor:parallel)	51s
unit_specs (nats-sync:parallel)	1m 1s
unit_specs (template:parallel)	52s
unit_specs (release)	49s
	23m 32s

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