Outcome check for `boost_tree(engine = "C5.0")` broken?

[hfrick]

This test has the comment "outcome is not a factor" so I would expect the snapshot to capture a related error

parsnip/tests/testthat/test-boost_tree_C5.0.R

Lines 38 to 48 in a4bb370

	# outcome is not a factor:
	expect_snapshot(
	error = TRUE,
	res <- fit(
	lc_basic,
	funded_amnt ~ term,
	data = lending_club,
	engine = "C5.0",
	control = ctrl
	)
	)

However, the snapshot shows:

parsnip/tests/testthat/_snaps/boost_tree_C5.0.md

Lines 1 to 9 in a4bb370

	# C5.0 execution
	Code
	res <- fit(lc_basic, funded_amnt ~ term, data = lending_club, engine = "C5.0",
	control = ctrl)
	Condition
	Error in `.convert_form_to_xy_fit()`:
	! The argument `engine` cannot be used to create the data.
	Possible arguments are subset or weights.