Add a migration for CFN stack in Connector stack #135

Job	Run time
prettier	6s
terraform-fmt	4s
codegen-freshness	17s
meta	4s
tflint	13s
typos	7s
terraform-validate (asset-account/terraform/cloudformation-stack/examples/advanced)	13s
terraform-docs (./asset-account/terraform/cloudformation-stack)	5s
terraform-docs (./asset-account/terraform/stack-set)	5s
terraform-docs (./iam-policies/terraform)	7s
terraform-validate (asset-account/terraform/cloudformation-stack/examples/basic)	12s
terraform-docs (./connector/terraform)	5s
terraform-validate (asset-account/terraform/stack-set/examples/self-managed)	13s
terraform-docs (./connector/terraform/modules/account)	10s
terraform-validate (asset-account/terraform/stack-set/examples/service-managed)	13s
terraform-docs (./connector/terraform/modules/region)	10s
terraform-validate (connector/terraform/examples/advanced)	11s
terraform-validate (connector/terraform/examples/basic)	13s
terraform-docs (./connector/terraform/modules/nat-provision)	6s
terraform-validate (iam-policies/terraform/examples/basic)	15s
	3m 9s

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