Fixes crash due to gradle upgrade

build.gradle

@@ -12,8 +12,8 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:3.6.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath 'io.realm:realm-gradle-plugin:5.8.0'
-        classpath 'com.google.gms:google-services:4.2.0'
+        classpath 'io.realm:realm-gradle-plugin:5.15.2'
+        classpath 'com.google.gms:google-services:4.3.3'
         classpath 'io.fabric.tools:gradle:1.28.1'
     }
 }