Git commits in Moodle 3.11.4 by Adrian Perez

commit f0bf6597153ae24c77448d3b1d834768ac1ba2bf
Author: Adrian Perez <adrian.perez@ffhs.ch>
Date:   Thu, 01 Jul 2021 17:03:56 +0800
Tag:    v3.11.4

MDL-72060 mod_lti: fix comparison if user is gradable