add testing script

Author: Jason Mok

reproduce_issue.py

@@ -0,0 +1,7 @@
+import pandas as pd
+import datetime
+
+# Attempt to replicate the issue
+result = pd.DataFrame([datetime.datetime.now(datetime.timezone.utc)])[0].value_counts(bins=2)
+print(result)
+print(pd.__version__)