add lombok dependency

PP-binding/backend/pom.xml

@@ -56,6 +56,12 @@
             <version>4.0.1</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.44</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
 
     <build>