fix: message.loading return hide type (#28362)

components/message/__tests__/type.test.tsx

@@ -23,4 +23,9 @@ describe('message.typescript', () => {
       },
     );
   });
+
+  it('hide', () => {
+    const hide = message.loading('doing...');
+    hide();
+  });
 });

components/message/index.tsx

@@ -106,7 +106,9 @@ export interface ThenableArgument {
   (val: any): void;
 }
 
-export interface MessageType extends PromiseLike<any> {}
+export interface MessageType extends PromiseLike<any> {
+  (): void;
+}
 
 const typeToIcon = {
   info: InfoCircleFilled,