fix format violations

Author: Marcos.Cela

src/test/java/org/kohsuke/github/extras/auth/JWTTokenProviderTest.java

@@ -1,13 +1,13 @@
 package org.kohsuke.github.extras.auth;
 
-import java.io.File;
-import java.io.IOException;
-import java.security.GeneralSecurityException;
-
 import org.junit.Test;
 import org.kohsuke.github.AbstractGitHubWireMockTest;
 import org.kohsuke.github.GitHub;
 
+import java.io.File;
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
 public class JWTTokenProviderTest extends AbstractGitHubWireMockTest {
 
     private static String TEST_APP_ID_2 = "83009";