BridgeJS: Take ownership of source Uint8Array id in `swift_js_init_memory` #2303

Job	Run time
Build for native target (macos-15, Xcode_16.4)	53s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	40s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	40s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	40s
check-bridgejs-generated	45s
build-examples	51s
format	31s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	46s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	46s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	44s
deploy-examples	1s
	7m 17s

Provide feedback