chore: fix type errors

Author: bang9

packages/uikit-react-native/src/fragments/createGroupChannelFragment.tsx

@@ -109,7 +109,7 @@ const createGroupChannelFragment = (initModule?: Partial<GroupChannelModule>): G
       await onBlurFragment();
       onPressHeaderRight();
     });
-    const _onPressMediaMessage: GroupChannelProps['MessageList']['onPressMediaMessage'] = useFreshCallback(
+    const _onPressMediaMessage: NonNullable<GroupChannelProps['MessageList']['onPressMediaMessage']> = useFreshCallback(
       async (message, deleteMessage, uri) => {
         await onBlurFragment();
         onPressMediaMessage(message, deleteMessage, uri);

packages/uikit-testing-tools/src/mocks/createMockChannel.ts

@@ -125,14 +125,9 @@ class MockChannel implements GetMockProps<Params, SendbirdBaseChannel & Sendbird
   isOperator(): boolean {
     throw new Error('Method not implemented.');
   }
-  refresh = jest.fn(async (): Promise<never> => {
+  refresh = jest.fn(async (): Promise<this> => {
     this.params.sdk?.__throwIfFailureTest();
-
-    if (this.isGroupChannel()) {
-      return this.asGroupChannel() as never;
-    } else {
-      return this.asOpenChannel() as never;
-    }
+    return this;
   });
 
   enter = jest.fn(async () => {