upgrade moodle2cc gem

test plan:
* import the package referenced in the ticket
* module items that were previously only brought in
as standalone links should now be wiki pages with
description text

fixes #CNVS-10280

Change-Id: Ic997b091afd185afd1b6f33ba1c298430f33c91b
Reviewed-on: https://gerrit.instructure.com/28992
Reviewed-by: Jeremy Stanley <jeremy@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Nathan Rogowski <nathan@instructure.com>
Product-Review: Bracken Mosbacker <bracken@instructure.com>