Update letter request schema to replace specificationId with letterVa… #61

Job	Run time
Set CI/CD metadata	6s
Commit stage / Check file format	4s
Commit stage / Scan secrets	10s
Commit stage / Check Markdown format	3s
Commit stage / Check English usage	11s
Commit stage / Count lines of code	6s
Commit stage / Scan dependencies	42s
Commit stage / Check TODO usage	5s
Commit stage / Check for changes to event schema package compared to main branch	3s
Commit stage / Check event schema version has been updated	-1s
Test stage / Check generated dependencies	23s
Test stage / Typecheck	29s
Test stage / Unit tests	52s
Test stage / Linting	55s
Test stage / Perform static analysis	5s
Test stage / Test coverage	6s
Build stage / Artefact 1	4s
Build stage / Build Docs	10s
Build stage / Artefact n	5s
Acceptance stage	0s
	4m 38s

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