Don't JSON-encode provider config #2968

Job	Run time
Lint pkg	27s
prerequisites	2m 53s
test_integrations (stack-reference)	1m 2s
test_templates	2m 50s
go-tests	3m 54s
examples (aws-java-eks-minimal)	3m 14s
examples (aws-java-webserver)	2m 51s
test_integrations (stack-transformation)	52s
examples (aws-native-java-s3-folder)	3m 51s
test_integrations (adopt-into-component)	1m 8s
examples (azure-java-appservice-sql)	2m 47s
test_integrations (rename)	1m 3s
examples (azure-java-static-website)	2m 53s
test_integrations (rename-component)	1m 15s
examples (gcp-java-gke-hello-world)	2m 44s
test_integrations (rename-component-and-child)	1m 3s
examples (minimal)	3m 4s
test_integrations (retype-component)	1m 2s
examples (minimalsbt)	3m 3s
test_integrations (retype-parents)	1m 17s
examples (random)	2m 50s
	46m 3s

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