Mac Catalyst Support #239

Job	Run time
config	11s
build (macOS)	47s
build (iOS)	5m 19s
build (watchOS)	4m 40s
build (tvOS)	5m 32s
build (visionOS)	3m 34s
build (MacCatalyst)	4m 1s
CPython testbed (MacCatalyst)	1m 23s
Briefcase testbed (iOS)	4m 24s
Briefcase testbed (macOS)	1m 21s
CPython testbed (visionOS)	2m 25s
CPython testbed (iOS)	4m 47s
	38m 24s

Provide feedback