added seprate auditable in entity

src/main/java/com/billpaymentservice/bbps/entites/TransactionMaster.java

@@ -24,7 +24,7 @@ import lombok.ToString;
 @ToString
 @NoArgsConstructor
 @AllArgsConstructor
-public class TransactionMaster {
+public class TransactionMaster extends Auditable {
 
     // 👇 JSON me "txn_id" aayega, ye DB me bank_txn_id column me save hoga
     @Id
@@ -166,4 +166,4 @@ public class TransactionMaster {
 
     @Column(name = "modified_epoch_date")
     private Long modifiedEpochDate;
-}
+}