Add execution result to summary (#1024)

Author: vladislav-sidorovich

dumper/app/src/main/java/com/google/edwmigration/dumper/application/dumper/MetadataDumper.java

@@ -296,6 +296,9 @@ private void logFinalSummary(
             linePrinter.println(
                 "Output, including debugging information, saved to '%s'", outputFileLocation);
           }
+
+          String stateToPrint = requiredTaskSucceeded ? "SUCCEEDED" : "FAILED";
+          linePrinter.println("Dumper execution: " + stateToPrint);
         });
   }
 }