[BUG] Attack Discovery is not a beta feature

[muskangulati-qasource]

Documentation links

https://www.elastic.co/docs/solutions/security/ai/attack-discovery#attack-discovery-generate-discoveries

Description

Actual Screenshot

Expected Screenshot

Which documentation set(s) does this bug apply to?

ESS only

Release version

This bug applies to Elastic Stack 8.18.0 and above releases

Testing environment

Build deployed from the production cloud environment: https://cloud.elastic.co/

[muskangulati-qasource]

@arvindersingh-qasource please review!

[arvindersingh-qasource]

Reviewed and assigned to @jmikell821 !