update code_checks.sh

Author: saldanhad

ci/code_checks.sh

@@ -90,6 +90,8 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.Timestamp.resolution PR02" \
         -i "pandas.Timestamp.tzinfo GL08" \
         -i "pandas.Timestamp.year GL08" \
+        -i "pandas.Series.dt.freq GL08" \
+        -i "pandas.Series.dt.unit GL08" \
         -i "pandas.api.types.is_dict_like PR07,SA01" \
         -i "pandas.api.types.is_file_like PR07,SA01" \
         -i "pandas.api.types.is_float PR01,SA01" \