re-enable testCustomExecutor

Author: biyuhao

dubbo-common/src/test/java/org/apache/dubbo/common/concurrent/CompletableFutureTaskTest.java

@@ -90,13 +90,12 @@ public void run() {
 
 
     @Test
-    @Ignore
     public void testCustomExecutor() {
         Executor mockedExecutor = mock(Executor.class);
         CompletableFuture<Integer> completableFuture = CompletableFuture.supplyAsync(() -> {
             return 0;
         });
         completableFuture.thenRunAsync(mock(Runnable.class), mockedExecutor);
-        verify(mockedExecutor, times(1)).execute(any());
+        verify(mockedExecutor, times(1)).execute(any(Runnable.class));
     }
 }