fix: update centerMentorId reference in Quiz schema query

- Changed the centerMentorId reference in the Quiz schema to use centerMentor.mentorId instead of the current user's ID.
- This adjustment ensures that the correct mentor association is maintained in the query logic, enhancing data integrity and access control.

src/Quiz/quiz.schema.ts

@@ -172,7 +172,7 @@ export class QuizSchema extends PothosSchema {
             ...query,
             where: {
               serviceId: args.serviceId,
-              centerMentorId: ctx.http.me.id,
+              centerMentorId: centerMentor.mentorId,
             },
           })
         },