Update okhttp to fix proxy issues.

Author: leMaik

pom.xml

@@ -72,7 +72,7 @@
     <dependency>
       <groupId>com.squareup.okhttp3</groupId>
       <artifactId>okhttp</artifactId>
-      <version>3.12.0</version>
+      <version>3.14.9</version>
     </dependency>
     <dependency>
       <groupId>com.google.code.gson</groupId>