refactor: findAllByIdIn을 JPA 기본 메서드로 변경

Author: 88dldl

nmnb-domain/src/main/kotlin/nmnb/domain/post/repository/PostRepository.kt

@@ -8,6 +8,5 @@ interface PostRepository : JpaRepository<Post, Long> {
     @Query("SELECT p.id FROM Post p")
     fun findAllPostId(): List<Long>
 
-    @Query("SELECT p FROM Post p WHERE p.id IN :ids")
-    fun findAllByIdIn(ids: List<Long>): List<Post>
+    fun findAllByIdIn(ids: Iterable<Long>): List<Post>
 }