add settings log to user creation actions

Bug: 260573368
Test: croot && make RunSettingsRoboTests -j40 ROBOTEST_FILTER="com.android.settings.users.UserSettingsTest"
Change-Id: If54799d074103df3a46945acab337bfa9d88dd0c

src/com/android/settings/users/UserSettings.java

@@ -1604,6 +1604,7 @@ public class UserSettings extends SettingsPreferenceFragment
             openUserDetails(userInfo, false);
             return true;
         } else if (pref == mAddUser) {
+            mMetricsFeatureProvider.action(getActivity(), SettingsEnums.ACTION_USER_ADD);
             // If we allow both types, show a picker, otherwise directly go to
             // flow for full user.
             if (mUserCaps.mCanAddRestrictedProfile) {