fix

Signed-off-by: Mikhail Petrov <mike@nspcc.ru>

Author: mike-petrov

get_webstat_metrics.py

@@ -208,7 +208,7 @@ async def main():
 
         for family in text_string_to_metric_families(requests.get(args.url_test).content.decode('utf-8')):
             if family.name == 'neo_exporter_fs_chain_supply':
-                output['contract']['mainnet']['balance'] = family.samples[0].value
+                output['contract']['testnet']['balance'] = family.samples[0].value
             if family.name == 'neo_exporter_epoch':
                 output['network_epoch']['testnet'] = family.samples[0].value
             if family.name == 'neo_exporter_containers_number':