PackageToJS: Rename SWIFT_PATH to SWIFT_BIN_PATH env var (#518) #1950

Job	Run time
build-examples	42m 31s
Build for native target (macos-15, Xcode_16.4)	3m 9s
check-bridgejs-generated	2m 50s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	12m 43s
format	35s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	12m 39s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	16m 48s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	13m 29s
deploy-examples	10s
	1h 44m 54s

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