Merge pull request #5 from wego/update-lombok-version-for-java-11

Update lombok version for java 11

Author: vibhav-wego

Diff for: extras/retrofit2/pom.xml

@@ -13,7 +13,7 @@
 
   <properties>
     <retrofit2.version>2.4.0</retrofit2.version>
-    <lombok.version>1.16.20</lombok.version>
+    <lombok.version>1.18.6</lombok.version>
   </properties>
 
   <dependencies>