BridgeJS: fix code generation for public enums #2571

Job	Run time
build-examples	20m 33s
format	33s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	2m 58s
check-bridgejs-generated	3m 25s
Build for native target (macos-15, Xcode_16.4)	2m 36s
prettier	13s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 45s
Test BridgeJS against Swift versions (swift:6.3, 603.0.0)	3m 7s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	12m 59s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	18m 50s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	13m 40s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 44s
deploy-examples	0s
	1h 35m 23s

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