fix: 엔티티 변환 메소드 name 필드 추가

Author: ysw789

src/main/java/dmu/dasom/api/domain/applicant/dto/ApplicantCreateRequestDto.java

@@ -61,6 +61,7 @@ public class ApplicantCreateRequestDto {
 
     public Applicant toEntity() {
         return Applicant.builder()
+                .name(this.name)
                 .studentNo(this.studentNo)
                 .contact(this.contact)
                 .email(this.email)