[9.1](backport #46723) Add tests for beatsauth extension 1/2

[mergify]

Proposed commit message

This PR adds test for translated Elasticsearch exporter configurations works with: mTLS, ca_trusted_fingerprint and verififcation_mode

Checklist

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have made corresponding change to the default configuration files
• I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Related issues

• Relates [beats receivers] Test that translated Elasticsearch exporter configurations work with: self-signed certificates, mTLS, and proxies #45491

---

This is an automatic backport of pull request #46723 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of e9bfa88 has failed:

On branch mergify/bp/9.1/pr-46723
Your branch is up to date with 'origin/9.1'.

You are currently cherry-picking commit e9bfa8878.
  (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:   libbeat/otelbeat/beatconverter/beatconverter.go
	new file:   libbeat/otelbeat/oteltest/beatsauth_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   NOTICE.txt
	both modified:   go.mod
	both modified:   go.sum
	both modified:   libbeat/otelbeat/beatconverter/beatconverter_test.go

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]

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[elasticmachine]

Pinging @elastic/elastic-agent-data-plane (Team:Elastic-Agent-Data-Plane)

[mergify]

This pull request has not been merged yet. Could you please review and merge it @khushijain21? 🙏

[mergify]

This pull request has not been merged yet. Could you please review and merge it @khushijain21? 🙏

[mergify]

This pull request has not been merged yet. Could you please review and merge it @khushijain21? 🙏

[pierrehilbert]

@khushijain21 could you please resolve the conflicts?

[khushijain21]

These tests will be moved to elastic-agent. CLosing this backport