fix: 캔 가격, Payment의 price 타입 Int, Double -> BigDecimal로 변경

src/main/kotlin/kr/co/vividnext/sodalive/can/payment/Payment.kt

@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.can.payment
 
 import kr.co.vividnext.sodalive.can.charge.Charge
 import kr.co.vividnext.sodalive.common.BaseEntity
+import java.math.BigDecimal
 import javax.persistence.Column
 import javax.persistence.Entity
 import javax.persistence.EnumType
@@ -25,7 +26,7 @@ data class Payment(
     var receiptId: String? = null
     var method: String? = null
 
-    var price: Double = 0.toDouble()
+    var price: BigDecimal = 0.toBigDecimal()
     var locale: String? = null
     var orderId: String? = null
 }