Update pipeline.json

pipeline.json

@@ -86,7 +86,10 @@
         },
         "rembg_model": {
             "name": "BiRefNet",
-            "args": {}
-        }
+            "args": {
+                "model_name": "briaai/RMBG-2.0"
+            }
+        },
+        "default_pipeline_type": "1024_cascade"
     }
 }