Git merges in Moodle 3.8.9 by Eloy Lafuente (stronk7)

commit 5d14a3a27b5005f0a88ed215ac096cb7be147251
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Fri, 07 May 2021 22:54:42 +0800
Tag:    v3.8.9

Merge branch 'install_38_STABLE' of https://git.in.moodle.com/amosbot/moodle-install into MOODLE_38_STABLE


commit 52aa1e4c99a9b69a7b3fc2b5b5b601ceb38e83fe
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Tue, 20 Apr 2021 06:06:04 +0800
Tag:    v3.8.9

Merge branch 'MDL-69256-38' of git://github.com/andrewnicols/moodle into MOODLE_38_STABLE


commit a3ad581e52d41756061af5bba11a802c658dab73
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Thu, 11 Mar 2021 07:12:31 +0800
Tag:    v3.8.9

Merge branch 'MDL-70726-3.8' of https://github.com/NashTechOpenUniversity/moodle into MOODLE_38_STABLE