fix: re-tag beta features as beta
fix: re-tag beta features as beta

flag=none

Test Plan:
  The following feature flags should have a beta pill:
    New Quizzes migration during course import/copy
    New Quizzes third party importing
    New Quizzes migration enabled by default
    New Quizzes migration required

Change-Id: I72678faee96c54fa1207ede2c4570ba7a98ce110
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/280201
Reviewed-by: Alex Slaughter <11669a22a05ead38ed9badafd55ef4c5386724b6@instructure.com>
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
QA-Review: Mark McDermott <20dd8ba615f2257ea7254f93d6f30ae11aa4f904@instructure.com>
Product-Review: Stephen Kacsmark <90aaf30f5583a54f0f3cdbd115e37bda3a251932@instructure.com>

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