Git commits in Moodle 3.11.8 by Leon Stringer

commit 8a6e4904bfbaac1c7ad9d1b953a462c06ce7b072
Author: Leon Stringer <leon.stringer@ntlworld.com>
Date:   Wed, 04 May 2022 00:30:36 +0800
Tag:    v3.11.8

MDL-74631 mod_lti: Remove </img>

commit 972744ee1201f8a4110723791f8540e6911b5099
Author: Leon Stringer <leon.stringer@ntlworld.com>
Date:   Sat, 19 Feb 2022 00:35:23 +0800
Tag:    v3.11.8

MDL-69951 filter_tidy: Replace drop-font-tags