Increase timeout for when build are super slow (on my GitHub at least)

Author: Gary Gregory

src/test/java/org/apache/commons/io/FileUtilsWaitForTest.java

@@ -46,7 +46,7 @@ public void testWaitForInterrupted() throws InterruptedException {
         final CountDownLatch started = new CountDownLatch(1);
         final Thread thread1 = new Thread(() -> {
             started.countDown();
-            assertTrue(FileUtils.waitFor(FileUtils.current(), 4));
+            assertTrue(FileUtils.waitFor(FileUtils.current(), 10));
             wasInterrupted.set(Thread.currentThread().isInterrupted());
         });
         thread1.start();