[Release] Update versions for Release 10.20.0 #2138

Job	Run time
pod-lib-lint (ios, macos-12)	7m 39s
quickstart	9m 39s
catalyst	6m 43s
pod-lib-lint (ios, macos-13)	4m 36s
pod-lib-lint (tvos, macos-12)	7m 22s
pod-lib-lint (tvos, macos-13)	4m 8s
quickstart-ftl-cron-only	0s
pod-lib-lint (macos --skip-tests, macos-12)	4m 49s
pod-lib-lint (macos --skip-tests, macos-13)	4m 6s
spm (iOS, macos-12)	2m 31s
pod-lib-lint (watchos, macos-12)	3m 14s
spm (iOS, macos-13)	3m 10s
pod-lib-lint (watchos, macos-13)	4m 54s
spm (tvOS, macos-12)	3m 3s
spm (tvOS, macos-13)	5m 2s
spm (macOS, macos-12)	2m 47s
spm (macOS, macos-13)	5m 45s
spm (watchOS, macos-12)	3m 33s
spm (watchOS, macos-13)	4m 55s
spm (catalyst, macos-12)	2m 45s
spm (catalyst, macos-13)	3m 20s
installations-cron-only	0s
	1h 34m 1s

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