Disable tasks for processing google services for variants which do not use them.

app/build.gradle

@@ -59,6 +59,12 @@ android {
     }
 }
 
+android.applicationVariants.all { variant ->
+    def shouldProcessGoogleServices = variant.flavorName == "play"
+    def googleTask = tasks.findByName("process${variant.name.capitalize()}GoogleServices")
+    googleTask.enabled = shouldProcessGoogleServices
+}
+
 dependencies {
     // AndroidX, The Basics
     implementation "androidx.appcompat:appcompat:1.4.2"