fixed lint C408 on scaffolding template

Author: eadwinCode

ellar_cli/scaffolding/project_template/project_name/root_module.ellar

@@ -7,4 +7,4 @@ from ellar.samples.modules import HomeModule
 class ApplicationModule(ModuleBase):
     @exception_handler(404)
     def exception_404_handler(cls, ctx: IExecutionContext, exc: Exception) -> Response:
-        return JSONResponse(dict(detail="Resource not found."), status_code=404)
+        return JSONResponse({"detail": "Resource not found."}, status_code=404)