[CrowdStrike] Handle deprecating Threat fields #15856
Description
The crowdstrike.falcon integration is using TacticId, TacticIds, Tactic, Tactics, TechniqueId, TechniqueIds Technique and Techniques fields to populate threat.* ECS fields for various detection events.
According to CrowdStirke documentation these fields are deprecated and these fields are moved under MitreAttack object.
Though the deprecating fields are still show up in the live logs, It would be good to switch to the recommended fields.
Deprecating note and schema for MitreAttack object:
