Fix undefined isCanceled variable

The variable `isCanceled` was not defined in the scope of the `setTimeout` callback within `deleteTransactionCore.ts`, leading to an error. This commit defines `isCanceled` within the scope to resolve the issue.

src/hooks/transactions/transactionOperations/deleteOperation/deleteTransactionCore.ts

@@ -105,15 +105,15 @@ export const useDeleteTransactionCore = (
         pendingDeletionRef.current?.delete(id);
         reject(error);
       }
+      
+      // cancel 함수에서 참조할 수 있도록 클로저로 isCanceled 변수 노출
+      (promiseObj as any).cancel = () => {
+        isCanceled = true;
+        pendingDeletionRef.current?.delete(id);
+        console.log('트랜잭션 삭제 작업 취소 완료');
+      };
     });
     
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    (promiseObj as any).cancel = () => {
-      isCanceled = true;
-      pendingDeletionRef.current?.delete(id);
-      console.log('트랜잭션 삭제 작업 취소 완료');
-    };
-    
     return promiseObj;
   }, [transactions, setTransactions, user]);
 };