[8.19](backport #3935) Update to new release API endpoints

[mergify]

Release API migration to new endpoints is now complete.

Past Release Endpoint : https://elastic-release-api.s3.us-west-2.amazonaws.com/public/past-releases.json
Future Release Endpoint : https://elastic-release-api.s3.us-west-2.amazonaws.com/public/future-releases.json

This PR updates the old Release API endpoints to new one's

More Info:
https://groups.google.com/a/elastic.co/g/release-eng-team/c/qgXaCX-y29k/m/jzm2S8MeAwAJ

---

This is an automatic backport of pull request #3935 done by Mergify.

[mergify]

Cherry-pick of 6563747 has failed:

On branch mergify/bp/8.19/pr-3935
Your branch is up to date with 'origin/8.19'.

You are currently cherry-picking commit 65637471.
  (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)

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   .github/workflows/updatecli.yml
	deleted by us:   llm/cve.md

no changes added to commit (use "git add" and/or "git commit -a")

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

[mergify]

This pull request has not been merged yet. Could you please review and merge it @navyau09? 🙏

[mergify]

This pull request has not been merged yet. Could you please review and merge it @navyau09? 🙏

[mergify]

This pull request has not been merged yet. Could you please review and merge it @navyau09? 🙏

[navyau09]

@uri-weisman Can you please take a look at the failing tests and merge the backports? Thanks