Revert "[Frequent Updates] Gradle 6.6.1 & Android Gradle Plugin 4.0.1 & com.jfrog.bintray.gradle 1.8.5 (#1079)" (#1193)

This reverts commit 33476b4754.

test/android/build.gradle

@@ -30,7 +30,7 @@ buildscript {
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
 
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:4.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }

test/android/wrapper.gradle

@@ -17,5 +17,5 @@
 */
 
 wrapper {
-    gradleVersion = '6.6.1'
+    gradleVersion = '6.5'
 }