fix: use new lighter method (#105)

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Author: mpetrun5

chains/evm/calls/consts/lighter.go

@@ -7,7 +7,7 @@ import (
 )
 
 var LighterABI, _ = abi.JSON(strings.NewReader(`[{
-  "name": "withdraw",
+  "name": "fulfillWithdraw",
   "type": "function",
   "stateMutability": "nonpayable",
   "inputs": [

chains/lighter/message/lighter.go

@@ -153,7 +153,7 @@ func (h *LighterMessageHandler) verifyWithdrawal(tx *lighter.LighterTx, borrowAm
 
 func (h *LighterMessageHandler) calldata(tx *lighter.LighterTx, borrowAmount *big.Int) ([]byte, error) {
 	return consts.LighterABI.Pack(
-		"withdraw",
+		"fulfillWithdraw",
 		common.HexToHash(tx.Hash),
 		common.BytesToAddress(tx.Transfer.Memo[:20]),
 		borrowAmount)