update multi_json to 1.10.1

fixes #CNVS-14723

Change-Id: I2d02c692a0ef7429b1fdc55ace887ed3998a9a97
Reviewed-on: https://gerrit.instructure.com/39160
Reviewed-by: Jeremy Stanley <jeremy@instructure.com>
Product-Review: Jeremy Stanley <jeremy@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
QA-Review: Matt Fairbourn <mfairbourn@instructure.com>