BridgeJS: Enforce throws(JSException) on @JS protocol methods #2064

Job	Run time
Build for native target (macos-15, Xcode_16.4)	3m 6s
format	33s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	2m 24s
build-examples	18m 41s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	2m 36s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	2m 38s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 48s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	2m 37s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	2m 58s
check-bridgejs-generated	3m 3s
deploy-examples	0s
	41m 24s

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