chore: update cu url

Author: NickJ202

src/providers/AOProvider.tsx

@@ -6,7 +6,7 @@ import { connect } from '@permaweb/aoconnect';
 import { AO, AO_TOKEN_DENOMINATION, ENDPOINTS } from 'helpers/config';
 
 export const afCu = connect({
-	CU_URL: 'https://cu-af.dataos.so',
+	CU_URL: 'https://cu.ao-testnet.xyz',
 });
 
 export const goldsky = new Client({