checkstyle fixes

Author: cybele-ripple

xrpl4j-integration-tests/src/test/java/org/xrpl/xrpl4j/tests/AmmIT.java

@@ -39,8 +39,8 @@
 import org.xrpl.xrpl4j.model.ledger.AuctionSlot;
 import org.xrpl.xrpl4j.model.ledger.AuthAccount;
 import org.xrpl.xrpl4j.model.ledger.AuthAccountWrapper;
-import org.xrpl.xrpl4j.model.ledger.Issue;
 import org.xrpl.xrpl4j.model.ledger.CurrencyIssue;
+import org.xrpl.xrpl4j.model.ledger.Issue;
 import org.xrpl.xrpl4j.model.ledger.LedgerObject;
 import org.xrpl.xrpl4j.model.transactions.AccountSet;
 import org.xrpl.xrpl4j.model.transactions.AccountSet.AccountSetFlag;