Downgrade mockito back.

Author: vkryachko

firebase-inappmessaging/firebase-inappmessaging.gradle

@@ -142,7 +142,7 @@ dependencies {
     annotationProcessor 'com.google.auto.value:auto-value:1.6.5'
     annotationProcessor 'com.ryanharter.auto.value:auto-value-parcel:0.2.6'
 
-    testImplementation 'org.mockito:mockito-core:3.3.3'
+    testImplementation 'org.mockito:mockito-core:1.10.19'
     testImplementation "com.google.truth:truth:$googleTruthVersion"
     testImplementation 'junit:junit:4.13.1'
     testImplementation 'androidx.test:runner:1.3.0'

firebase-inappmessaging/src/test/java/com/google/firebase/inappmessaging/internal/ProxyAnalyticsConnectorTest.java

@@ -14,8 +14,8 @@
 
 package com.google.firebase.inappmessaging.internal;
 
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;