Git commits in Moodle 3.9.9 by Sara Arjona

commit 97ff875c8317e789d2a711e000b059e4e1b00adb
Author: Sara Arjona <sara@moodle.com>
Date:   Fri, 02 Jul 2021 14:42:57 +0800
Tag:    v3.9.9

MDL-72036 atto_h5p: Random error with external URL