switch to mexc for price

app.py

@@ -140,7 +140,7 @@ class ModelData:
 def get_tao_price() -> float:
     for i in range(0, METAGRAPH_RETRIES):
         try:
-            return float(requests.get("https://api.kucoin.com/api/v1/market/stats?symbol=TAO-USDT").json()["data"]["last"])
+            return float(requests.get("https://api.mexc.com/api/v3/avgPrice?symbol=TAOUSDT").json()["price"])
         except:
                 if i == METAGRAPH_RETRIES - 1:
                     raise