style(http,util): fix sonar check problem

Author: yanghang8612

framework/src/main/java/org/tron/core/services/http/Util.java

@@ -227,7 +227,7 @@ public static JSONObject printTransactionToJSON(Transaction transaction, boolean
                 .parseObject(JsonFormat.printToString(deployContract, selfType));
             byte[] ownerAddress = deployContract.getOwnerAddress().toByteArray();
             byte[] contractAddress = generateContractAddress(transaction, ownerAddress);
-            jsonTransaction.put("contract_address", ByteArray.toHexString(contractAddress));
+            jsonTransaction.put(CONTRACT_ADDRESS, ByteArray.toHexString(contractAddress));
             break;
           default:
             Class clazz = TransactionFactory.getContract(contract.getType());