flip `Package.swift` file versioning (#715) #2561

Job	Run time
Build for native target (macos-15, Xcode_16.4)	3m 24s
format	38s
Test BridgeJS against Swift versions (swift:6.1.2, 601.0.0)	3m 1s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	12m 44s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	13m 27s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	16m 7s
check-bridgejs-generated	2m 51s
prettier	12s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	14m 6s
build-examples	20m 16s
Test BridgeJS against Swift versions (swift:6.2, 602.0.0)	3m 3s
deploy-examples	10s
	1h 29m 59s

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