fix: generate GoogleSQL instead of legacy SQL data types for dry_run=True from bpd._read_gbq_colab with local pandas DataFrame#1867

tswast merged 8 commits intomaingoogleapis/python-bigquery-dataframes:mainfrom

b428190014-read_gbq_colab-dry_run-googlesqlgoogleapis/python-bigquery-dataframes:b428190014-read_gbq_colab-dry_run-googlesqlCopy head branch name to clipboard