[7.17](backport #39174) Enabling retries for Beats flaky tests

[mergify]

Proposed commit message

In scope of beats migration from Jenkins to Buildkite - added retries to tests (Cloud tests not retried at the moment, see comment below).
Packaging, K8Tests are not retried according to global Jenkinsfile.
BK Builds: https://buildkite.com/elastic/beats/builds?branch=oakrizan%3Aenable-retries-for-flaky-tests

Auditbeat MacOS test failure not related/caused by current PR. Related issue: https://github.com/elastic/ingest-dev/issues/3268

Logs

Kafka Go UnitTests for libbeat failures (e.g. https://buildkite.com/elastic/beats-libbeat/builds/4491#018f38c5-3f1c-40d4-adb1-ac53d901ce7b) are due to a known flakyness issue: https://github.com/elastic/ingest-dev/issues/3199

[mergify]

Cherry-pick of 02ea29d has failed:

On branch mergify/bp/7.17/pr-39174
Your branch is up to date with 'origin/7.17'.

You are currently cherry-picking commit 02ea29d8cf.
  (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/auditbeat/auditbeat-pipeline.yml
	modified:   .buildkite/filebeat/filebeat-pipeline.yml
	modified:   .buildkite/heartbeat/heartbeat-pipeline.yml
	modified:   .buildkite/libbeat/pipeline.libbeat.yml
	modified:   .buildkite/metricbeat/pipeline.yml
	modified:   .buildkite/x-pack/pipeline.xpack.auditbeat.yml
	modified:   .buildkite/x-pack/pipeline.xpack.dockerlogbeat.yml
	modified:   .buildkite/x-pack/pipeline.xpack.filebeat.yml
	modified:   .buildkite/x-pack/pipeline.xpack.metricbeat.yml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   .buildkite/packetbeat/pipeline.packetbeat.yml
	both modified:   .buildkite/winlogbeat/pipeline.winlogbeat.yml
	both modified:   .buildkite/x-pack/pipeline.xpack.heartbeat.yml
	both modified:   .buildkite/x-pack/pipeline.xpack.libbeat.yml
	both modified:   .buildkite/x-pack/pipeline.xpack.osquerybeat.yml
	both modified:   .buildkite/x-pack/pipeline.xpack.packetbeat.yml
	both modified:   .buildkite/x-pack/pipeline.xpack.winlogbeat.yml

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

[elasticmachine]

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• Duration: 16 min 31 sec

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