feat(coll): 좋아요 기준 변경 (#248)

Author: pizzazoa

src/main/java/org/devkor/apu/saerok_server/domain/collection/application/CollectionLikeCommandService.java

@@ -24,7 +24,7 @@
 @RequiredArgsConstructor
 public class CollectionLikeCommandService {
 
-    private static final int POPULAR_COLLECTION_THRESHOLD = 3;
+    private static final int POPULAR_COLLECTION_THRESHOLD = 5;
 
     private final CollectionLikeRepository collectionLikeRepository;
     private final CollectionRepository collectionRepository;

src/main/resources/db/migration/V69__alter_popular_collection.sql

@@ -0,0 +1,6 @@
+DELETE FROM popular_collection pc
+WHERE (
+    SELECT COUNT(*)
+    FROM user_bird_collection_like ubcl
+    WHERE ubcl.user_bird_collection_id = pc.user_bird_collection_id
+) < 5;