Update adapter_config.json

adapter_config.json

@@ -28,7 +28,7 @@
   "target_modules": [
     "c_attn"
   ],
-  "task_type": null,
+  "task_type": "text-generation",  // <-- Set this to a valid string
   "use_dora": false,
   "use_rslora": false
-}
+}