fix modal.confirm unable to close normally when onCancel and onOk return true (#49054)

* fix: fix modal.confirm unable to close normally when onCancel and onOk return true

* test: update test case

components/_util/ActionButton.tsx

@@ -111,7 +111,7 @@ const ActionButton: React.FC<ActionButtonProps> = (props) => {
       clickedRef.current = false;
     } else {
       returnValueOfOnOk = actionFn();
-      if (!returnValueOfOnOk) {
+      if (!isThenable(returnValueOfOnOk)) {
         onInternalClose();
         return;
       }

components/modal/__tests__/confirm.test.tsx

@@ -949,4 +949,24 @@ describe('Modal.confirm triggers callbacks correctly', () => {
     expect(document.querySelector('.ant-btn-primary')?.textContent).toBe('test');
     ConfigProvider.config({ holderRender: undefined });
   });
+
+  it('onCancel and onOk return any results and should be closed', async () => {
+    Modal.confirm({ onOk: () => true });
+    await waitFakeTimer();
+    $$('.ant-btn-primary')[0].click();
+    await waitFakeTimer();
+    expect(document.querySelector('.ant-modal-root')).toBeFalsy();
+
+    Modal.confirm({ onOk: () => false });
+    await waitFakeTimer();
+    $$('.ant-btn-primary')[0].click();
+    await waitFakeTimer();
+    expect(document.querySelector('.ant-modal-root')).toBeFalsy();
+
+    Modal.confirm({ onCancel: () => undefined });
+    await waitFakeTimer();
+    $$('.ant-btn')[0].click();
+    await waitFakeTimer();
+    expect(document.querySelector('.ant-modal-root')).toBeFalsy();
+  });
 });