Git commits in Moodle 3.10.8 by Adrian Perez

commit 3399c49298f4bc7d63d712c1b10c4e47c4b1234a
Author: Adrian Perez <adrian.perez@ffhs.ch>
Date:   Thu, 01 Jul 2021 17:03:56 +0800
Tag:    v3.10.8

MDL-72060 mod_lti: fix comparison if user is gradable