BridgeJS: Relax SwiftSyntax version constraint to support 602 and 603 #1933

Job	Run time
check-bridgejs-generated	2m 49s
format	31s
build-examples	44m 45s
Build for native target (macos-15, Xcode_16.4)	2m 45s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	12m 24s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	12m 59s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	17m 17s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 41s
deploy-examples	-1s
	1h 47m 10s

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