Hi there team, the YUI module 'moodle-core-formchangechecker' has been deprecated. It was replaced with 'core_form/changechecker'. I've found that MDL-69918 has many examples of how to fix this deprecation.

The 'mod_questionnaire' plugin has two instances where the deprecated YUI module is used:

• mod/questionnaire/locallib.php:141 or https://github.com/PoetOS/moodle-mod_questionnaire/blob/main/locallib.php#L141
• mod/questionnaire/module.js:208 or https://github.com/PoetOS/moodle-mod_questionnaire/blob/main/module.js#L208

Thank you.