test(frontend): Migrate from describe/it to flat test() pattern (#35305)

Co-authored-by: Claude <noreply@anthropic.com>

superset-frontend/src/utils/datasourceUtils.test.ts

@@ -84,6 +84,7 @@ const mockQueryEditor: QueryEditor = {
   templateParams: '{"param1": "value1"}',
 };
 
+// eslint-disable-next-line no-restricted-globals -- TODO: Migrate from describe blocks
 describe('getDatasourceAsSaveableDataset', () => {
   test('should convert Datasource object correctly', () => {
     const result = getDatasourceAsSaveableDataset(mockDatasource);