fix(backend): fix UpdateGestionnaireDto inheritance to include all user fields

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/routes/user/dto/update_gestionnaire.dto.ts

@@ -1,4 +1,4 @@
 import { PartialType } from "@nestjs/swagger";
-import { CreateGestionnaireDto } from "./create_gestionnaire.dto";
+import { CreateUserDto } from "./create_user.dto";
 
-export class UpdateGestionnaireDto extends PartialType(CreateGestionnaireDto) {}
+export class UpdateGestionnaireDto extends PartialType(CreateUserDto) {}