[Request] add New terms rule alert suppression docs

[vitaliidm]

Description

adds alert suppression for New terms rule type

Background & resources

• PRs:
  • [Security Solution][Detection Engine] adds alert suppression for New Terms rule type kibana#178294
• Issues/metas:
  • https://github.com/elastic/security-team/issues/8824
• Point of contact:
  • @vitaliidm
• Test environments:

Which documentation set does this change impact?

ESS and serverless

ESS release

8.14

Serverless release

around 8.14 release

Feature differences

ESS: alert suppression is available for Platinum license
Serverless: available for Essentials and Complete tiers

API docs impact

adds alert_suppression field to New terms rule create/update/patch rule APIs

Prerequisites, privileges, feature flags

ESS: requires Platinum license
Feature Flag: alertSuppressionForNewTermsRuleEnabled

[nastasha-solomon]

ESS and Serverless docs merged!