Git commits in Moodle 3.8.9 by Marina Glancy

commit 2976ff42b9c3e428f13940e856345b994f154196
Author: Marina Glancy <marina@moodle.com>
Date:   Wed, 21 Apr 2021 17:49:57 +0800
Tag:    v3.8.9

MDL-71390 core: raise max_input_vars requirement for Moodle 3.11