Fixes

- fix liquidator.py compatibility with newer web3.py
- fix wrong arbiscan tx URL format (missing 0x)

Author: jagerman

scripts/liquidator.py

@@ -146,13 +146,13 @@
     )
     sys.exit(1)
 
-w3.middleware_onion.add(middleware.construct_sign_and_send_raw_middleware(account))
+w3.middleware_onion.add(middleware.SignAndSendRawMiddlewareBuilder.build(account))
 
 w3.eth.default_account = account.address
 
 
 def tx_url(txid):
-    return f"https://{'' if args.mainnet else 'sepolia.'}arbiscan.io/tx/{txid}"
+    return f"https://{'' if args.mainnet else 'sepolia.'}arbiscan.io/tx/0x{txid}"
 
 
 def get_contract(name, addr):