Change Data.construct(from uint8Array:) return type from Data? to Dat… #2660

Job	Run time
prettier	10s
format	47s
check-bridgejs-generated	2m 31s
build-examples	19m 54s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 9s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	14m 10s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	12m 25s
Build for native target (macos-15, Xcode_16.4)	2m 37s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	3m 2s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	18m 15s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 38s
Test BridgeJS against Swift versions (swift:6.3, 603.0.0)	3m 10s
deploy-examples	17s
	1h 34m 5s

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