Increase live events max queue size
Increase live events max queue size

closes PLAT-4551

Test Plan:
 - n/a

Change-Id: I6a82092fcddf5f382443193f0e5d73eb8913c6d4
Reviewed-on: https://gerrit.instructure.com/198003
Tested-by: Jenkins
Reviewed-by: Weston Dransfield <e9203059795dc94e28a8831c65eb7869e818825e@instructure.com>
QA-Review: Weston Dransfield <e9203059795dc94e28a8831c65eb7869e818825e@instructure.com>
Product-Review: Marc Phillips <b810f855174e0bc032432310b0808df2cf714fbc@instructure.com>

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