Add `-Xnode` option to `carton test` (#501) #1633

Job	Run time
Build and test on macos-14 with Swift 6.0, Xcode 15.4	16m 37s
Build and test on macos-14 with Swift 5.10, Xcode 15.4	10m 55s
Build and test on macos-13 with Swift 5.9.2, Xcode 15.2	21m 33s
Build and test on Linux with Swift swift-6.0.2-RELEASE	11m 15s
Build and test on Linux with Swift swift-5.10-RELEASE	9m 41s
Build and test on Linux with Swift swift-5.9.2-RELEASE	14m 15s
	1h 24m 16s

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