Git commits in Moodle 3.11.4 by Tim Hunt

commit 90d04a010b811f9834d1a740935f530f207f1afd
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Tue, 26 Oct 2021 06:15:26 +0800
Tag:    v3.11.4

MDL-72912 questions: fix type of question_display_options::$context


commit f89a6106faa9c5fac6b64868d63ad22e8d6e756c
Author: Tim Hunt <T.J.Hunt@open.ac.uk>
Date:   Sat, 23 Oct 2021 06:14:25 +0800
Tag:    v3.11.4

MDL-72901 question: add missing {$a} in string attemptfinishedsubmitting