SA14: Fix SQLAlchemy deprecation warning on `before_execute` event hdlr
SA14: Fix SQLAlchemy deprecation warning on `before_execute` event hdlr

SADeprecationWarning: The argument signature for the
`ConnectionEvents.before_execute` event listener has changed as of
version 1.4, and conversion for the old argument signature will be
removed in a future release. The new signature is
`def before_execute(conn, clauseelement, multiparams, params, execution_options)`.
crate/crate-python,crate/crate-python