Remove beta flag for Enterprise Search metricbeat module

[richkuz]

We've been using this module internally for Stack monitoring since 8.2. I think we can remove the beta flag.

cc @aznick @carlosdelest @ioanatia

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• Start Time: 2022-10-12T12:47:53.594+0000

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[richkuz]

I'm pausing on this PR for a moment, awaiting further discussion with @ioanatia on how we want to proceed in general with the Enterprise Search metricbeat module.

[richkuz]

Passing the baton to @carlosdelest . This PR is not urgent, but we should agree to cancel (defer) or merge it so it isn't lingering.

[carlosdelest]

@ioanatia , what will be our strategy for Metricbeat? I think it's going to be replaced by Agent eventually, but I guess we can make it GA. Any reason not to?

[carlosdelest]

@ioanatia , thoughts on this one?

[carlosdelest]

Closing as there is no potential benefit in getting metricbeat plugin GA.