Re-enable and debug flaky tags test

[rudolf]

Summary

Closes #90552

The DELETE tag test sometimes failed with a 400 code where supertest expected a 200 but I've been unable to track down where exactly this happens and without knowing what the response body is, it's hard to fix. So I added this debugging but after > 80 test runs it still hasn't failed so I'll enable the test again and if there's more failures we should have more information to fix it.

Checklist

Delete any items that are not applicable to this PR.

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• Unit or functional tests were updated or added to match the most common scenarios
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For maintainers

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[elasticmachine]

Pinging @elastic/kibana-core (Team:Core)

[Bamieh]

So basically we'll be waiting for the test to get flaky again but this time wwe have additional tracing. We have a similar case with ui counters api_integration tests (SO does not get incremented correctly even though we use refresh=wait_for)

[rudolf]

@elasticmachine merge upstream

[rudolf]

@elasticmachine merge upstream

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 143cb45

Metrics [docs]

✅ unchanged

History

• 💚 Build #105556 succeeded 8153ee8
• 💔 Build #105119 failed 60d3e37cc5740fcd26219c1365c8f0cb98f10298

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream