fix(auth): adds missing EMAIL_NOT_FOUND error code

[bojeil-google]

Catch EMAIL_NOT_FOUND when /accounts:sendOobCode is called for password reset on a user that does not exist.

[hiranya911]

LGTM 👍

Should we add a test case? Something similar to:

firebase-admin-java/src/test/java/com/google/firebase/auth/FirebaseUserManagerTest.java

Line 2771 in 7352a43

public void testDeleteSamlProviderConfigWithNotFoundError() {

[bojeil-google]

LGTM 👍

Should we add a test case? Something similar to:

firebase-admin-java/src/test/java/com/google/firebase/auth/FirebaseUserManagerTest.java

Line 2771 in 7352a43

public void testDeleteSamlProviderConfigWithNotFoundError() {

Done