remove null checks for call and put some other validation

src/main/java/net/gepafin/tendermanagement/model/request/CreateCallRequestStep2.java

@@ -2,7 +2,6 @@ package net.gepafin.tendermanagement.model.request;
 
 import java.util.List;
 
-import jakarta.validation.constraints.NotNull;
 import lombok.Data;
 
 @Data
@@ -10,10 +9,8 @@ public class CreateCallRequestStep2 {
 
     private Long threshold;
 
-    @NotNull
     private List<EvaluationCriteriaReq> criteria;
 
-    @NotNull
     private List<LookUpDataReq> checkList;
 
     private List<DocumentReq> docs;