Upgrade fix for module name change from "attforblock" to "attendance"

Fix through upgrade for https://tracker.moodle.org/browse/CONTRIB-4754

The patch is located here and was based on MOODLE_23_STABLE:
https://github.com/timgus/moodle-mod_attendance/commit/6567b597b3426bc2efa09e2136773f833250d22b