spdx.expressions/extract-ids doesn't take :or-later flag into account for license ids that have that as a suffix

[pmonks]

Steps to Reproduce:

(require '[spdx.expressions :as sexp])
(sexp/extract-ids (sexp/parse "GPL-2.0+"))

Expected Result:

#{"GPL-2.0-or-later"}

Actual Result:

#{"GPL-2.0"}