update hf_hub_url for nectar_rm in dataset_info

Hi there,

I cannot find the "mlinmg/RLAIF-Nectar" on hf, seems like it changed as "AstraMindAI/RLAIF-Nectar". So, making a PR for updating.

See: https://huggingface.co/datasets/AstraMindAI/RLAIF-Nectar

data/dataset_info.json

@@ -359,7 +359,7 @@
     }
   },
   "nectar_rm": {
-    "hf_hub_url": "mlinmg/RLAIF-Nectar",
+    "hf_hub_url": "AstraMindAI/RLAIF-Nectar",
     "ms_hub_url": "AI-ModelScope/RLAIF-Nectar",
     "ranking": true
   },
@@ -459,4 +459,4 @@
     },
     "folder": "python"
   }
-}
+}