Fix Lti::Keystorage delayed job
Fix Lti::Keystorage delayed job

Capitalization and snake-casing matter.

closes PLAT-3911

Test Plan:
 n/a

Change-Id: I2be342d57d12b89e491aa9ecd4b3423a35cfee38
Reviewed-on: https://gerrit.instructure.com/173989
Reviewed-by: Weston Dransfield <e9203059795dc94e28a8831c65eb7869e818825e@instructure.com>
QA-Review: Weston Dransfield <e9203059795dc94e28a8831c65eb7869e818825e@instructure.com>
Tested-by: Jenkins
Product-Review: Marc Phillips <b810f855174e0bc032432310b0808df2cf714fbc@instructure.com>

instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms