Git commits in Moodle 3.10.4 by Michael Hawkins

commit 9d63efed82da8b23f0b386231210f81fbd47990b
Author: Michael Hawkins <michaelh@moodle.com>
Date:   Tue, 06 Apr 2021 13:01:19 +0800
Tag:    v3.10.4

MDL-70595 core: Updated security.txt expiry