revert pandas

Author: parthea

packages/google-cloud-bigquery-storage/samples/to_dataframe/requirements.txt

@@ -13,7 +13,7 @@ ipython==9.13.0; python_version >= '3.11'
 ipywidgets==8.1.8
 pandas===1.3.5; python_version == '3.7'
 pandas===2.0.3; python_version == '3.8'
-pandas==3.0.2; python_version >= '3.9'
+pandas==2.3.3; python_version >= '3.9'
 tqdm==4.67.3
 db-dtypes===1.4.2; python_version <= '3.8'
 db-dtypes==1.5.1; python_version >= '3.9'