Update OkHttp

Author: rubengees

build.gradle

@@ -2,7 +2,7 @@ buildscript {
     ext.support_version = '25.0.0'
     ext.support_test_version = '0.5'
     ext.build_tools_version = '25.0.0'
-    ext.okhttp_version = '3.4.1'
+    ext.okhttp_version = '3.4.2'
 
     repositories {
         jcenter()