Use SwiftSyntax prebuilt action in CI #2728

Job	Run time
build-examples	10m 43s
Build for native target	0s
check-bridgejs-generated	0s
Build and Test	0s
prettier	0s
format	-1s
Test BridgeJS against Swift versions	-8s
deploy-examples	-1s
	10m 33s

Provide feedback