[8.x] [Cloud Security] Added 'x-elastic-internal-origin' to…

… agentless axios request headers for Kibana 9.0 (#203188) (#203332)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Cloud Security] Added 'x-elastic-internal-origin' to
agentless axios request headers for Kibana 9.0
(#203188)](#203188)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT
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BACKPORT-->

Co-authored-by: seanrathier <[email protected]>