[8.14] [ESS][8.14] ES|QL rule is GA'ing (backport #5032)

[mergify]

• addresses [Detection Engine][ESS] GA ES|QL rule type when ES|QL GAs kibana#178422 and contributes to contributes to [Serverless & 8.14] Updates to ES|QL Security features in 8.14 and Serverless  #5149
• relevant PR in Kibana: [Security Solution][Detection Engine] removes ES|QL tech preview badges from rule create form and rule details kibana#179855

Removed the tech preview label that was applied to UI and API docs for the ES|QL rule:

• About detection rules | Rule types
• Create a detection rule | Create an ES|QL rule
• Create rule API

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  This is an automatic backport of pull request [ESS][8.14] ES|QL rule is GA'ing  #5032 done by Mergify.

[github-actions]

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