Add readonly option for TypeScript Language #761

Job	Run time
build	30s
typescript,typescript-zod,typescript-effect-schema	2m 30s
javascript,schema-javascript	1m 1s
golang,schema-golang	1m 49s
cjson,schema-cjson	1m 27s
cplusplus,schema-cplusplus	2m 40s
flow,schema-flow	1m 41s
java,schema-java	5m 11s
python,schema-python	1m 41s
haskell,schema-haskell	8m 49s
csharp,schema-csharp,schema-json-csharp,graphql-csharp,csharp-SystemTextJson	6m 12s
json-ts-csharp	1m 51s
dart,schema-dart	1m 17s
swift,schema-swift	2m 18s
javascript-prop-types	1m 6s
ruby	1m 0s
php	55s
scala3,schema-scala3	2m 1s
rust,schema-rust	3m 48s
kotlin,schema-kotlin,kotlin-jackson,schema-kotlin-jackson	6m 39s
objective-c	2m 34s
test-complete	1s
	57m 1s

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