Update client/src/main/java/io/split/client/dtos/FallbackTreatmentsConfiguration.java

Co-authored-by: gthea <gaston.thea@harness.io>

Author: chillaq

client/src/main/java/io/split/client/dtos/FallbackTreatmentsConfiguration.java

@@ -3,8 +3,8 @@
 import java.util.Map;
 
 public class FallbackTreatmentsConfiguration {
-    private FallbackTreatment _globalFallbackTreatment;
-    private Map<String, FallbackTreatment> _byFlagFallbackTreatment;
+    private final FallbackTreatment _globalFallbackTreatment;
+    private final Map<String, FallbackTreatment> _byFlagFallbackTreatment;
 
     public FallbackTreatmentsConfiguration(FallbackTreatment globalFallbackTreatment, Map<String, FallbackTreatment> byFlagFallbackTreatment) {
         _globalFallbackTreatment = globalFallbackTreatment;