Bump actions/checkout from 4.2.2 to 6.0.2 #689

Job	Run time
Set CI/CD metadata	4s
Commit stage / Scan secrets	9s
Commit stage / Check English usage	9s
Commit stage / Check file format	8s
Commit stage / Check TODO usage	5s
Commit stage / Scan dependencies	42s
Commit stage / Check Markdown format	4s
Commit stage / Detect Terraform Changes	6s
Commit stage / Count lines of code	7s
Commit stage / Lint Terraform	0s
Commit stage / Trivy Scan	0s
Commit stage / Run terraform-docs	0s
Test stage / Linting	5s
Test stage / Unit tests	4s
Test stage / Perform static analysis	6s
Test stage / Test coverage	5s
Build stage / Artefact n	4s
Build stage / Artefact 1	4s
Acceptance stage / Environment set up	6s
Acceptance stage / UI performance test	5s
Acceptance stage / Contract test	8s
Acceptance stage / Security test	4s
Acceptance stage / Integration test	3s
Acceptance stage / Load test	5s
Acceptance stage / UI test	5s
Acceptance stage / Accessibility test	3s
Acceptance stage / Environment tear down	4s
	2m 45s

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