fix AutocompleteInput tests

Author: slax57

packages/ra-ui-materialui/src/input/AutocompleteInput.spec.tsx

@@ -928,9 +928,9 @@ describe('<AutocompleteInput />', () => {
         // Give time for the (previously thrown) error to happen
         await new Promise(resolve => setTimeout(resolve, 1000));
         await waitFor(() => {
-            screen.getByText('resources.tags.fields.tags');
+            screen.getByText('resources.undefined.fields.tags');
         });
-        fireEvent.click(screen.getByText('resources.tags.fields.tags'));
+        fireEvent.click(screen.getByText('resources.undefined.fields.tags'));
         await waitFor(() => {
             screen.getByText('No options');
         });