Fix crash that occurs when PIN authentication is required (#109)

Signed-off-by: Michael obi <[email protected]>

Author: michael-paystack

build.gradle

@@ -33,5 +33,5 @@ ext {
 
     buildToolsVersion = "29.0.2"
     supportLibraryVersion = "28.0.0"
-    versionName = "3.1.1"
+    versionName = "3.1.2"
 }

paystack/src/main/java/co/paystack/android/TransactionManager.java

@@ -195,7 +195,7 @@ private void handleApiResponse(TransactionApiResponse transactionApiResponse) {
             return;
         }
 
-        if (transactionApiResponse.status.equalsIgnoreCase("2") && transactionApiResponse.auth.equalsIgnoreCase("avs")) {
+        if (transactionApiResponse.status.equalsIgnoreCase("2") && transactionApiResponse.hasValidAuth() && transactionApiResponse.auth.equalsIgnoreCase("avs")) {
             new AddressVerificationAsyncTask().execute(transactionApiResponse.avsCountryCode);
             return;
         }