feat(auth): Add support for Email OTP MFA (#5449) #4363

Job	Run time
test / test-dart-vm (3.3.0)	3m 51s
test / test-dart-vm (stable)	3m 53s
dart2js_test / test-dart-2js (3.3.0, chrome)	14m 42s
dart2js_test / test-dart-2js (3.3.0, firefox)	15m 10s
ddc_test / test-dart-ddc (3.3.0, chrome)	10m 12s
dart2js_test / test-dart-2js (stable, chrome)	14m 10s
ddc_test / test-dart-ddc (3.3.0, firefox)	11m 37s
dart2js_test / test-dart-2js (stable, firefox)	14m 54s
ddc_test / test-dart-ddc (stable, chrome)	9m 58s
ddc_test / test-dart-ddc (stable, firefox)	10m 42s
native_test / test-dart-native (macos-14)	3m 39s
native_test / test-dart-native (windows-latest)	6m 20s
	1h 59m 8s

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