fix: 구인 게시글 조회 API 키워드로 검색 안 되는 에러 수정

backend/src/main/java/com/graphy/backend/domain/recruitment/repository/custom/RecruitmentCustomRepositoryImpl.java

@@ -61,7 +61,7 @@ private BooleanExpression positionIn(List<Position> positions) {
     }
 
     private BooleanExpression recruitmentTitleLike(String title) {
-        return title != null ? recruitment.title.like(title) : null;
+        return title != null ? recruitment.title.contains(title) : null;
     }
 }