BridgeJS: Fix syntax error in generated JS #2763

Job	Run time
check-bridgejs-generated	3m 32s
prettier	13s
format	51s
Build for native target (macos-15, Xcode_26.0.1)	2m 10s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	15m 0s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	20m 24s
Test BridgeJS against Swift versions (swift:6.3, 603.0.0)	3m 12s
build-examples (Multithreading)	9m 36s
build-examples (Basic)	10m 1s
build-examples (Embedded)	10m 8s
build-examples (PlayBridgeJS)	10m 25s
build-examples (OffscrenCanvas)	10m 14s
build-examples (ActorOnWebWorker)	7m 7s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 17s
build-examples-deploy	0s
deploy-examples	0s
	1h 56m 10s

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