[Failing Test]: beam_PreCommit_Go_Cron failing beam/util/pubsubx timeout

### What happened?

Failing last 3 runs since Jun 28, 2023 midnight: https://ci-beam.apache.org/view/PostCommit/job/beam_PreCommit_Go_Cron/7271/

Log:

```
12:29:01 2023/06/28 16:19:01 Published apple with id: m0
12:29:01 2023/06/28 16:19:01 Published banana with id: m1
12:29:01 2023/06/28 16:19:01 Published carrot with id: m2
12:29:01 panic: test timed out after 10m0s
12:29:01 running tests:
12:29:01 TestPublish (10m0s)
12:29:01
12:29:01 goroutine 92 [running]:
1

12:29:01 FAIL github.com/apache/beam/sdks/v2/go/pkg/beam/util/pubsubx 600.031s
```

This is a precommit persumably caused by upstream dependencies.

### Issue Failure

Failure: Test is continually failing

### Issue Priority

Priority: 1 (unhealthy code / failing or flaky postcommit so we cannot be sure the product is healthy)

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