CI: Don't `xcbeautify` Swift Testing suites #5992

Job	Run time
Library (evolution)	4m 7s
Examples	40m 53s
Check Macro Compatibility	3m 31s
xcodebuild (test, IOS, 15.4)	10m 28s
xcodebuild (test, IOS, 16.0)	10m 55s
xcodebuild (test, MAC_CATALYST, 15.4)	9m 2s
xcodebuild (test, MACOS, 15.4)	1m 3s
xcodebuild (test, MACOS, 16.0)	46s
xcodebuild (test, TVOS, 15.4)	1s
xcodebuild (test, VISIONOS, 15.4)	1s
xcodebuild (test, WATCHOS, 15.4)	1s
xcodebuild (IOS, 15.2)	2m 40s
xcodebuild (MACOS, 15.2)	1m 17s
	1h 24m 45s

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