Enable the `l2-explicit-provider` conformance test #3220

Job	Run time
prerequisites	8m 16s
Lint pkg	3m 7s
test_integrations (stack-reference)	2m 13s
go-tests	9m 46s
test_integrations (stack-transformation)	2m 5s
test_templates	8m 59s
test_integrations (adopt-into-component)	2m 19s
examples (aws-java-eks-minimal)	3m 8s
test_integrations (rename)	2m 12s
examples (aws-java-webserver)	2m 52s
test_integrations (rename-component)	2m 9s
examples (aws-native-java-s3-folder)	2m 58s
test_integrations (rename-component-and-child)	2m 37s
examples (azure-java-appservice-sql)	2m 43s
test_integrations (retype-component)	4m 28s
examples (azure-java-static-website)	2m 39s
test_integrations (retype-parents)	2m 44s
examples (gcp-java-gke-hello-world)	2m 39s
examples (kubernetes)	4m 49s
examples (minimal)	2m 44s
examples (minimalsbt)	2m 49s
examples (random)	2m 53s
	1h 21m 9s

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