Fix get_columns sqlite reflection rejecting tables with WITHOUT_ROWID and/or STRICT...

Fix get_columns sqlite reflection rejecting tables with WITHOUT_ROWID and/or STRICT for generated column case

Fixed issue where SQLite table reflection would fail for tables using
``WITHOUT ROWID`` and/or ``STRICT`` table options when the table contained
generated columns. The regular expression used to parse ``CREATE TABLE``
statements for generated column detection has been updated to properly
handle these SQLite table options that appear after the column definitions.
Pull request courtesy Tip ten Brink.

Fixes: #12864
Closes: #12865
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/12865
Pull-request-sha: 833420afc72f1918a9ca315209ce6664a18ba07f

Change-Id: Ia25c05746055a66234531b4f1275bd3a2f3b44ad
(cherry picked from commit d526cedef3cd742259af51dac7a8b35e6be6c9f2)