[8.19] (backport #18891) Add tests for Oracle Linux 9

[mergify]

---

This is an automatic backport of pull request #18891 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 3b59fb5 has failed:

On branch mergify/bp/8.19/pr-18891
Your branch is up to date with 'origin/8.19'.

You are currently cherry-picking commit 3b59fb59d.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .buildkite/linux_jdk_matrix_pipeline.yml
	modified:   .buildkite/scripts/exhaustive-tests/generate-steps.py

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   .buildkite/scripts/common/vm-images.json

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[github-actions]

🤖 GitHub comments

Just comment with:

• run docs-build : Re-trigger the docs validation. (use unformatted text in the comment!)
• run exhaustive tests : Run the exhaustive tests Buildkite pipeline.

[robbavey]

run exhaustive tests

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 6a16eb0

Failed CI Steps

• 🥼 x-pack integration - FIPS mode

cc @robbavey