[CI] Use new-infra-type agent targeting for chainguard build

[delanni]

Summary

This PR ties #183200 + #182582 together

[elasticmachine]

Pinging @elastic/kibana-operations (Team:Operations)

[kibanamachine]

💔 All backports failed

Status	Branch	Result
❌	7.17	Backport failed because of merge conflicts You might need to backport the following PRs to 7.17: - chore(NA): bump node into v20 (#173461) - Upgrade to Node.js 20 (#162696) - [artifacts] Add CI retries (#130194) - [artifacts] Publish (#129499) - [artifacts] Merge docker context verification (#129399) - [artifacts] Merge package testing with release artifacts (#129378)
❌	8.14	Backport failed because of merge conflicts You might need to backport the following PRs to 8.14: - [build] Add image based on chainguard (#183200)

Manual backport

To create the backport manually run:

node scripts/backport --pr 183545

Questions ?

Please refer to the Backport tool documentation

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: f350ee5

Metrics [docs]

✅ unchanged

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

[kibanamachine]

Friendly reminder: Looks like this PR hasn’t been backported yet.
To create automatically backports add the label auto-backport or prevent reminders by adding the backport:skip label.
You can also create backports manually by running node scripts/backport --pr 183545 locally