bump User#roles cache key
bump User#roles cache key

due to a bad code merge, there was a window of time where the old
implementation was being cached with the new cache key.  so bump again.

refs CNVS-32642

test plan: n/a

Change-Id: I9aa871dfe180a6094d5b89dc380bbfbdc2cc15ec
Reviewed-on: https://gerrit.instructure.com/93471
Tested-by: Jenkins
Reviewed-by: James Williams  <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>
Product-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
QA-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>

venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,matematikk-mooc/canvas-lms,venturehive/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,matematikk-mooc/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms