fix: codegen generated headers are public on ios #868

Job	Run time
build (macos, fabric-view, kotlin-objc)	3m 17s
build (macos, legacy-module, cpp)	4m 7s
build (macos, legacy-module, kotlin-swift)	3m 20s
build (macos, legacy-module, kotlin-objc)	3m 20s
build (macos, legacy-view, kotlin-swift)	3m 17s
build (macos, legacy-view, kotlin-objc)	3m 22s
build (macos, turbo-module, kotlin-objc)	3m 19s
build (macos, turbo-module, cpp)	15m 39s
build (ubuntu, fabric-view, kotlin-objc)	5m 24s
build (ubuntu, legacy-module, cpp)	1m 51s
build (ubuntu, legacy-module, kotlin-swift)	1m 29s
build (ubuntu, legacy-module, kotlin-objc)	1m 43s
build (ubuntu, legacy-view, kotlin-swift)	1m 44s
build (ubuntu, legacy-view, kotlin-objc)	1m 51s
build (ubuntu, library, js)	1m 59s
build (ubuntu, turbo-module, cpp)	1m 44s
build (ubuntu, turbo-module, kotlin-objc)	5m 44s
	1h 3m 10s

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