Add config from convert_rt_detr_original_pytorch_checkpoint_to_pytorch.py

config.json

@@ -24,7 +24,7 @@
       512
     ],
     "layer_type": "basic",
-    "model_type": "rtdetr-resnet",
+    "model_type": "rt_detr_resnet",
     "out_features": [
       "stage2",
       "stage3",