Merge pull request #105 from Kusitms-29th-ASAP/fix/#104-teacher-name

fix: #104 선생님 이름 가져오기

src/main/kotlin/com/asap/asapbackend/domain/teacher/application/TeacherService.kt

@@ -58,7 +58,7 @@ class TeacherService(
             schoolName = school.name,
             grade = classroom.grade,
             className = classroom.className,
-            teacherName = teacher.username
+            teacherName = teacher.name
         )
     }
 }