[Request] Update docs for asset criticality file upload capability

[jaredburgettelastic]

Description

What

We're introducing the capability of uploading asset criticality assignments through a CSV file upload format. This functionality includes validation of said CSV file and a bulk upload API request.

Why

The existing asset criticality workflow only allows for assignment on a per-entity basis, and is not sufficient for customers having many entities within their environment. This file-based bulk upload feature allows larger customers to supply a list of assets that they would like to classify in order to quickly and easily ingest them into the Security platform.

Background & resources

• PRs:
  • [SecuritySolutions] Create Asset Criticality CSV upload page kibana#179891
  • [Entity Analytics] Internal API to upload asset criticality records via CSV file kibana#179930
• Issues/metas: https://github.com/elastic/security-team/issues/5261
• Point of contact: @jaredburgettelastic
• Test environments: Not yet available. Once ready, will be in EA long-lived environments document

Which documentation set does this change impact?

ESS and serverless

ESS release

8.14

Serverless release

None decided on yet

Feature differences

This feature will likely first go into ESS, as there are a few technical details related to navigation that need to be ironed out for Serverless. Once we have a Serverless release date in mind, will comment on this ticket.

API docs impact

N/A, internal APIs

Prerequisites, privileges, feature flags

No response