Cutovered duo_client_java fully to c5

Author: Polyakiv-Andrey

duo-client/src/main/java/com/duosecurity/client/Accounts.java

@@ -3,6 +3,7 @@
 public class Accounts extends Http {
   private Accounts(String inMethod, String inHost, String inUri, int timeout) {
     super(inMethod, inHost, inUri, timeout);
+    this.sigVersion = 5;
   }
 
   public static class AccountsBuilder extends ClientBuilder<Accounts> {

duo-client/src/main/java/com/duosecurity/client/Auth.java

@@ -3,6 +3,7 @@
 public class Auth extends Http {
   private Auth(String inMethod, String inHost, String inUri, int timeout) {
     super(inMethod, inHost, inUri, timeout);
+    this.sigVersion = 5;
   }
 
   public static class AuthBuilder extends ClientBuilder<Auth> {