Update MigratingTo1.19.md #6297

Job	Run time
Library (evolution)	4m 3s
xcodebuild (16) (test, MACOS, 16.2)	2m 31s
xcodebuild (15) (test, MAC_CATALYST, 15.4)	4m 4s
xcodebuild (15) (test, IOS, 15.4)	12m 39s
xcodebuild (16) (IOS, 16.2)	4m 59s
xcodebuild (16) (test, IOS, 16.2)	7m 11s
xcodebuild (16) (MACOS, 16.2)	1m 37s
xcodebuild (15) (test, TVOS, 15.4)	5m 23s
xcodebuild (15) (IOS, 15.2)	6m 40s
Check Macro Compatibility	3m 31s
xcodebuild (15) (test, MACOS, 15.4)	2m 51s
Examples	15m 38s
xcodebuild (15) (test, WATCHOS, 15.4)	8m 0s
xcodebuild (15) (MACOS, 15.2)	2m 3s
	1h 21m 10s

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