fix(can): 이전 버전의 호환성을 위해 기존의 int price를 유지하도록 수정

src/main/kotlin/kr/co/vividnext/sodalive/can/CanResponse.kt

@@ -1,14 +1,13 @@
 package kr.co.vividnext.sodalive.can
 
 import com.querydsl.core.annotations.QueryProjection
-import java.math.BigDecimal
 
 data class CanResponse @QueryProjection constructor(
     val id: Long,
     val title: String,
     val can: Int,
     val rewardCan: Int,
-    val price: BigDecimal,
+    val price: Int,
     val currency: String,
     val priceStr: String
 )