bump plugin settings cache key
bump plugin settings cache key

refs CNVS-33805

test plan: specs pass

Change-Id: Ia6b22984da5c7dc31b4cb15fd820e5f453894fed
Reviewed-on: https://gerrit.instructure.com/97493
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
Tested-by: Jenkins
Product-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>
QA-Review: Simon Williams <088e16a1019277b15d58faf0541e11910eb756f6@instructure.com>

sfu/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,grahamb/canvas-lms