Git commits in Moodle 3.11.1 by Sujith Haridasan

commit b5cd2c809b39d3cb1ffcf08e47311115938f671c
Author: Sujith Haridasan <sujith@moodle.com>
Date:   Thu, 10 Jun 2021 14:23:10 +0800
Tag:    v3.11.1

MDL-68915 core_form: Fix the behat test failure

commit ee1b33a4808090fafe64901ab07c9003b1f6cf33
Author: Sujith Haridasan <sujith@moodle.com>
Date:   Fri, 21 May 2021 14:03:45 +0800
Tag:    v3.11.1

MDL-68915 lesson: Do not allow maxgrade change

commit c750bd273b92735ff048fad9f50c492f5ae519a4
Author: Sujith Haridasan <sujith@moodle.com>
Date:   Mon, 10 May 2021 19:50:05 +0800
Tag:    v3.11.1

MDL-71241 course: Validate and sanitize sort arguments

commit 23f7bdc9a2a1407b6266ed2bf091dcc3b5540b8c
Author: Sujith Haridasan <sujith@moodle.com>
Date:   Mon, 05 Apr 2021 12:54:24 +0800
Tag:    v3.11.1

MDL-67975 nextcloud: Add support for Link to file