add cloudsecmachine email for CI

[orouz]

in https://github.com/elastic/cloudbeat/pull/2224 we've changed to use cloudsecmachine token for update-cli PRs

seems like although we use its token, the email is not configured and thus fails CLA check

commit with no CLA issue

commit with CLA issue

note the email is set on the first one (cloudsecmachine@users.noreply.github.com) but not on the second one (<>)

i've changed the email used to be cloudsecmachine@elastic.co, should work the same, if not we'll use the other one ^

[mergify[bot]]

This pull request does not have a backport label. Could you fix it @orouz? 🙏 To fixup this pull request, you need to add the backport labels for the needed branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 8./d branch. /d is the digit NOTE: backport-skip has been added to this pull request.

[github-actions[bot]]

:bar_chart: Allure Report - :green_heart: No failures were reported.

Result	Count
🟥 Failed	0
🟩 Passed	359
⬜ Skipped	33