[Release] Update versions for Release 10.20.0 #8161

Job	Run time
Check changed files	0s
pod-lib-lint-abtesting (iOS)	10m 11s
pod-lib-lint-auth (iOS)	10m 22s
binary_size_metrics (iOS)	5m 47s
pod-lib-lint-database (iOS)	13m 3s
pod-lib-lint-dynamiclinks (iOS)	7m 44s
pod-lib-lint-firestore (iOS)	23m 15s
pod-lib-lint-functions (iOS)	5m 32s
pod-lib-lint-inappmessaging (iOS)	8m 46s
pod-lib-lint-messaging (iOS)	11m 52s
pod-lib-lint-performance (iOS)	14m 48s
pod-lib-lint-remoteconfig (iOS)	12m 12s
pod-lib-lint-storage (iOS)	7m 17s
create_report	2m 55s
	2h 13m 44s

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