fix: nullable 조건 추가

Author: lvalentine6

src/main/java/timeeat/domain/store/Coordinates.java

@@ -1,5 +1,6 @@
 package timeeat.domain.store;
 
+import jakarta.persistence.Column;
 import jakarta.persistence.Embeddable;
 import lombok.AccessLevel;
 import lombok.EqualsAndHashCode;
@@ -18,8 +19,10 @@ public class Coordinates {
     private static final double MAX_LATITUDE = 37.715133;
     private static final double MIN_LONGITUDE = 126.734086;
     private static final double MAX_LONGITUDE = 127.269311;
-
+    @Column(nullable = false)
     private Double latitude;
+
+    @Column(nullable = false)
     private Double longitude;
 
     public Coordinates(Double latitude, Double longitude) {