[Flaky Test] github.com/elastic/beats/v7/libbeat/otel/otelconsumer TestPublish

## Flaky Test

* **Test Name:** TestPublish
* **Scope:** github.com/elastic/beats/v7/libbeat/otel/otelconsumer
* **File:** N/A
* **Location:** N/A
* **Buildkite Link:** https://buildkite.com/organizations/elastic/analytics/suites/beats/tests/f577de1e-0e2d-8aae-9222-ada835232897
* **Flaky Instances:** 1
* **Latest Occurrence:** 2026-08-17T04:29:50.352Z

### Details

```json
{
"id": "f577de1e-0e2d-8aae-9222-ada835232897",
"web_url": "https://buildkite.com/organizations/elastic/analytics/suites/beats/tests/f577de1e-0e2d-8aae-9222-ada835232897",
"scope": "github.com/elastic/beats/v7/libbeat/otel/otelconsumer",
"name": "TestPublish",
"location": null,
"file_name": null,
"instances": 1,
"latest_occurrence_at": "2026-08-17T04:29:50.352Z",
"most_recent_instance_at": "2026-08-17T04:29:50.352Z",
"last_resolved_at": null,
"ownership_team_ids": [],
"failure_examples_count": 1
}
```

### Failure Examples

**Example 1:**
**Run:** https://api.buildkite.com/v2/analytics/organizations/elastic/suites/beats/runs/d31c609f-0534-8769-82f0-05f5c3c0258a
**Time:** 2026-08-15T04:16:02.763Z
**Stacktrace:**

```
=== RUN TestPublish
--- FAIL: TestPublish (0.44s)

```

Start with TestPublish in github.com/elastic/beats/v7/libbeat/otel/otelconsumer and inspect the failure in the linked Buildkite analytics run. Reproduce the test and identify the intermittent failure cause; done means TestPublish passes reliably without masking the failure.

Written by the indexing model from the issue text.