Bump actions/checkout from 4 to 6 #1808

Job	Run time
Set CI/CD metadata	6s
Commit stage / Check file format	8s
Commit stage / Scan secrets	11s
Commit stage / Check for changes to event schema package compared to main branch	9s
Commit stage / Count lines of code	5s
Commit stage / Scan dependencies	30s
Commit stage / Check English usage	10s
Commit stage / Check Markdown format	5s
Commit stage / Detect Terraform Changes	8s
Commit stage / Check TODO usage	4s
Commit stage / Lint Terraform	0s
Commit stage / Trivy Scan	0s
Commit stage / Run terraform-docs	0s
Commit stage / Check event schema version has been updated	0s
Test stage / Typecheck	48s
Test stage / Linting	41s
Test stage / Unit tests	2m 19s
Test stage / Check generated dependencies	51s
Test stage / Perform static analysis	8s
Test stage / Test coverage	6s
Build stage / Build SDKs	1m 28s
Build stage / Build Docs	1m 36s
Build stage / Create Dynamic Environment	6s
Build stage / Build proxies	-1s
Acceptance stage	-1s
Publish stage	0s
	9m 37s

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