CCM-12995: Adding sns topic policy for sub #1393

Job	Run time
Set CI/CD metadata	3s
Commit stage / Scan secrets	6s
Commit stage / Check file format	5s
Commit stage / Check TODO usage	4s
Commit stage / Detect Terraform Changes	4s
Commit stage / Count lines of code	6s
Commit stage / Check for changes to event schema package compared to main branch	6s
Commit stage / Scan dependencies	29s
Commit stage / Check English usage	8s
Commit stage / Check Markdown format	9s
Commit stage / Run terraform-docs	5s
Commit stage / Lint Terraform	4s
Commit stage / Trivy Scan	3m 33s
Commit stage / Check event schema version has been updated	0s
Commit stage / Check event schemas have been regenerated	0s
Test stage	0s
Build stage	-1s
Acceptance stage	0s
Publish stage	0s
	5m 1s

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