BridgeJS: Fix optionals build error with Embedded Swift (#734) #2619

Job	Run time
check-bridgejs-generated	2m 44s
prettier	13s
Build for native target (macos-15, Xcode_16.4)	2m 56s
build-examples	20m 12s
format	32s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	2m 54s
Test BridgeJS against Swift versions (swift:6.3, 603.0.0)	3m 16s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	1m 11s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	1m 49s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 14s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	1m 27s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	1m 33s
deploy-examples	50s
	42m 51s

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