Add API tests for hashed email and phone number (#12469)

Author: tsunghung

FirebaseAnalyticsSwift/Tests/ObjCAPI/ObjCAPITests.m

@@ -60,6 +60,8 @@ - (void)consentTests:(NSURL *)url {
 - (void)onDeviceConversionTests:(NSURL *)url {
   [FIRAnalytics initiateOnDeviceConversionMeasurementWithEmailAddress:@"[email protected]"];
   [FIRAnalytics initiateOnDeviceConversionMeasurementWithPhoneNumber:@"+15555555555"];
+  [FIRAnalytics initiateOnDeviceConversionMeasurementWithHashedEmailAddress:[NSData data]];
+  [FIRAnalytics initiateOnDeviceConversionMeasurementWithHashedPhoneNumber:[NSData data]];
 }
 
 - (NSArray<NSString *> *)eventNames {

FirebaseAnalyticsSwift/Tests/SwiftUnit/AnalyticsAPITests.swift

@@ -73,6 +73,8 @@ final class AnalyticsAPITests {
 
     Analytics.initiateOnDeviceConversionMeasurement(emailAddress: "[email protected]")
     Analytics.initiateOnDeviceConversionMeasurement(phoneNumber: "+15555555555")
+    Analytics.initiateOnDeviceConversionMeasurement(hashedEmailAddress: Data())
+    Analytics.initiateOnDeviceConversionMeasurement(hashedPhoneNumber: Data())
 
     // MARK: - EventNames