CCM-11602: Update Get Letters endpoint #660

Job	Run time
Set CI/CD metadata	5s
Commit stage / Scan secrets	7s
Commit stage / Check file format	8s
Commit stage / Count lines of code	5s
Commit stage / Scan dependencies	26s
Commit stage / Check English usage	9s
Commit stage / Check Markdown format	6s
Commit stage / Check TODO usage	3s
Commit stage / Detect Terraform Changes	5s
Commit stage / Run terraform-docs	0s
Commit stage / Lint Terraform	0s
Commit stage / Trivy Scan	0s
Test stage / Check generated dependencies	28s
Test stage / Unit tests	1m 35s
Test stage / Typecheck	29s
Test stage / Linting	35s
Test stage / Perform static analysis	0s
Test stage / Test coverage	0s
Build stage	-1s
Acceptance stage	-1s
Publish stage	-1s
	4m 18s

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