Mark experimental ES indexer as beta, not experimental
See https://gitlab.com/gitlab-org/gitlab-ee/issues/6481#note_82985619 for the rationale.
@mdelaossa could you take this quick one for 11.1 when you're back, please?
See https://gitlab.com/gitlab-org/gitlab-ee/issues/6481#note_82985619 for the rationale.
@mdelaossa could you take this quick one for 11.1 when you're back, please?