Implement Firebase Auth UseUserAccessGroup for C++ iOS SDK #13659

Job	Run time
check_and_prepare	26s
build-tvos-macos-14	32m 42s
build-android-ubuntu-22.04	8m 37s
build-android-macos-14	12m 16s
build-android-windows-latest	18m 48s
build-desktop-windows-latest-x64-openssl	1h 5m 8s
build-desktop-ubuntu-22.04-x64-openssl	10m 43s
build-ios-macos-14	35m 4s
test-android-macos-14-emulator_ftl_target-gameloop	9s
test-android-macos-14-android_target-gameloop	8s
test-android-ubuntu-22.04-emulator_ftl_target-gameloop	13s
test-android-windows-latest-android_target-gameloop	13s
test-android-windows-latest-emulator_ftl_target-gameloop	12s
test-android-ubuntu-22.04-android_target-gameloop	13s
test-tvos-macos-14-tvos_simulator	5m 6s
test-ios-macos-14-ios_target-gameloop	1m 34s
test-ios-macos-14-simulator_target-gameloop	6m 46s
test-desktop-ubuntu-22.04-x64-openssl	12s
test-desktop-windows-latest-x64-openssl	16s
summarize-results	18s
attempt-retry	0s
	3h 19m 4s

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