Update rest-api-spec 8.x

[github-actions]

As titled.

[github-actions]

Following you can find the validation results for the API you have changed.

API	Status	Request	Response
async_search.submit	🟢	7/7	7/7

You can validate this API yourself by using the make validate target.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
indices.resolve_cluster	🔴	10/12	12/12
inference.update	⚪	Missing test	Missing test

You can validate these APIs yourself by using the make validate target.

[l-trotta]

wait before merging I want to check what's wrong with indices.resolve_cluster nevermind it's about the missing timeout that we just removed, probably the flight recorder isn't up to date with this

[pquentin]

wait before merging I want to check what's wrong with indices.resolve_cluster nevermind it's about the missing timeout that we just removed, probably the flight recorder isn't up to date with this

It's not actually about the missing timeout, but YAML test paramaters that are lists: https://github.com/elastic/elasticsearch/blob/a2f7486467ac6753a346df45052f550d8ade948b/rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/indices.resolve_cluster/10_basic_resolve_cluster.yml#L136-L149. This was fixed in elastic/elasticsearch#121315 but that was only backported to 8.18, not 8.x and 9.0. Those pull requests will fix that:

• [8.x] Improve resolve/cluster yaml test (#121315) elasticsearch#123260
• [9.0] Improve resolve/cluster yaml test (#121315) elasticsearch#123261