Update Issue Xcode placeholder to a supported version #9177

Job	Run time
Check changed files	0s
pod-lib-lint-auth (iOS)	14m 25s
pod-lib-lint-database (iOS)	5m 31s
pod-lib-lint-abtesting (iOS)	4m 23s
pod-lib-lint-dynamiclinks (iOS)	4m 21s
pod-lib-lint-functions (iOS)	1m 31s
pod-lib-lint-firestore (iOS)	28m 20s
pod-lib-lint-inappmessaging (iOS)	7m 38s
pod-lib-lint-messaging (iOS)	5m 3s
pod-lib-lint-performance (iOS)	12m 5s
pod-lib-lint-remoteconfig (iOS)	10m 58s
pod-lib-lint-storage (iOS)	4m 52s
create_report	2m 3s
	1h 41m 10s

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