4.3 behat errors

[aspark21]

Just picking out the errors that were noted in #141

        Exception: debugging() message/s found:
        Invalid event functions defined in \mod_facetoface\event\course_module_viewed
        line 275 of /lib/classes/event/base.php: call to debugging()
        line 86 of /mod/facetoface/view.php: call to core\event\base::create()

https://github.com/catalyst/moodle-mod_facetoface/blob/MOODLE_403_STABLE/view.php#L86
https://github.com/catalyst/moodle-mod_facetoface/blob/MOODLE_403_STABLE/classes/event/course_module_viewed.php#L41
https://moodledev.io/docs/4.2/devupdate#validation-of-required-parameter

probably needs to be more explicitly declared
https://github.com/mudrd8mz/moodle-tool_pluginskel/blob/main/skel/file/mod/view.mustache#L59-L62
not sure. Not an error we've seen in any other upgrade prep so far

fyi @opitz