remove unnecessary changes

Author: Shailesh Jagannath Padave

conductor-client/src/main/java/com/netflix/conductor/common/model/ProtoRegistryEntry.java

@@ -16,7 +16,7 @@
 
 @Data
 public class ProtoRegistryEntry {
-    private String serviceName;
-    private String filename;
-    private byte[] data;
+    private final String serviceName;
+    private final String filename;
+    private final byte[] data;
 }