[8.x] [Automatic Import] Modify codegen to autogenerate openAPI spec code (#193243)

[kibanamachine]

Backport

This will backport the following commits from main to 8.x:

• [Automatic Import] Modify codegen to autogenerate openAPI spec code (#193243)

Questions ?

Please refer to the Backport tool documentation

[elasticmachine]

Pinging @elastic/security-scalability (Team:Security-Scalability)

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: bf3ab1d

Failed CI Steps

• Jest Tests #5

Test Failures

• [job] [logs] Jest Tests #5 / Assignees renders

Metrics [docs]

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
integrationAssistant	46	49	+3

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
integrationAssistant	947.8KB	947.9KB	+17.0B

Public APIs missing exports

Total count of every type that is part of your API that should be exported but is not. This will cause broken links in the API documentation system. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats exports for more detailed information.

id	before	after	diff
integrationAssistant	3	4	+1

Unknown metric groups

API count

id	before	after	diff
integrationAssistant	54	59	+5

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @bhapas