Cache Link header in Quizzes API#index

Closes CNVS-16259

Change-Id: I3d4b2ba80b4a93c41b61d034c1d536cf60443d86
Reviewed-on: https://gerrit.instructure.com/42717
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Ryan Taylor <rtaylor@instructure.com>
Reviewed-by: Derek DeVries <ddevries@instructure.com>
QA-Review: Trevor deHaan <tdehaan@instructure.com>
Product-Review: Ahmad Amireh <ahmad@instructure.com>