[8.1] Functional test runner creates system_indices_superuser (#124008)

[kibanamachine]

Backport

This is an automatic backport to 8.1 of:

• Functional test runner creates system_indices_superuser #124008

Questions ?

Please refer to the Backport tool documentation

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: a62676b
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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
@kbn/test	203	208	+5

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
kibana	930	931	+1

Unknown metric groups

API count

id	before	after	diff
@kbn/test	235	244	+9

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

cc @pheyos