make readonly_user less blocking but more annoying
make readonly_user less blocking but more annoying

test plan
 - run specs
 - the should run

refs LS-2818
flag=none

Change-Id: Ief1662f3b0fdb8af94d069cdf9c019a337ad30c4
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/278478
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
Reviewed-by: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>
QA-Review: Rob Orton <7e09c9d3e96378bf549fc283fd6e1e5b7014cc33@instructure.com>
Product-Review: Rob Orton <7e09c9d3e96378bf549fc283fd6e1e5b7014cc33@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms