add schemas key to metadata json schema #578

Job	Run time
destroy-development	0s
strategy / strategy	3s
terraform (test, plan_apply) / plan	1m 6s
terraform (preproduction, plan) / plan	1m 24s
terraform (production, plan) / plan	1m 3s
terraform (development, plan_apply) / plan	1m 4s
terraform (production, plan) / apply	0s
terraform (production, plan) / terratest	0s
terraform (production, plan) / smoketest	0s
terraform (development, plan_apply) / terratest	5s
terraform (development, plan_apply) / apply	1s
terraform (test, plan_apply) / apply	1s
terraform (test, plan_apply) / terratest	0s
terraform (preproduction, plan) / apply	0s
terraform (preproduction, plan) / terratest	0s
terraform (preproduction, plan) / smoketest	0s
terraform (development, plan_apply) / smoketest	0s
terraform (test, plan_apply) / smoketest	0s
	4m 47s

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