[8.0](backport #29312) Add logs for ca_trusted_fingerprint workflow

[mergify]

This is an automatic backport of pull request #29312 done by Mergify.
Cherry-pick of db9b410 has failed:

On branch mergify/bp/8.0/pr-29312
Your branch is up to date with 'origin/8.0'.

You are currently cherry-picking commit db9b4104d.
  (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 <file>..." to mark resolution)
	both modified:   libbeat/common/transport/tlscommon/tls_config.go

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/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[botelastic]

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[elasticmachine]

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• Start Time: 2021-12-07T18:10:03.247+0000

• Duration: 102 min 20 sec

• Commit: f2bace0

Test stats 🧪

Test	Results
Failed	0
Passed	48265
Skipped	4277
Total	52542

💚 Flaky test report

Tests succeeded.

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[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/8.0/pr-29312 upstream/mergify/bp/8.0/pr-29312
git merge upstream/8.0
git push upstream mergify/bp/8.0/pr-29312

[belimawr]

run elasticsearch-ci/docs