ignore warnings when parsing old claims

lbry/schema/compat.py

@@ -1,4 +1,5 @@
 import json
+import warnings
 from decimal import Decimal
 
 from google.protobuf.message import DecodeError
@@ -8,6 +9,9 @@ from lbry.schema.types.v1.certificate_pb2 import KeyType
 from lbry.schema.types.v1.fee_pb2 import Fee as FeeMessage
 
 
+warnings.filterwarnings("ignore", category=RuntimeWarning, module="lbry.schema.compat")
+
+
 def from_old_json_schema(claim, payload: bytes):
     try:
         value = json.loads(payload)