feat(discover) Add option for discover2 rollout (#16668)
feat(discover) Add option for discover2 rollout (#16668)

When we start enabling discover2 for customers we want to do so
gradually. This option will be read by the feature handlers in getsentry
to incrementally enable discover2 for accounts on matching plans.
beeftornado/sentry,beeftornado/sentry,beeftornado/sentry