fixing system-tests

Author: chelsea-lin

tests/system/small/operations/test_strings.py

@@ -14,6 +14,7 @@
 
 import re
 
+import packaging.version
 import pandas as pd
 import pyarrow as pa
 import pytest
@@ -633,6 +634,9 @@ def test_getitem_w_array(index):
 
 
 def test_getitem_w_struct_array():
+    if packaging.version.Version(pd.__version__) <= packaging.version.Version("1.5.0"):
+        pytest.skip("https://github.com/googleapis/python-bigquery/issues/1992")
+
     pa_struct = pa.struct(
         [
             ("name", pa.string()),