The PreCommit Python Coverage job is flaky

[github-actions]

The PreCommit Python Coverage is failing over 50% of the time
Please visit https://github.com/apache/beam/actions/workflows/beam_PreCommit_Python_Coverage.yml?query=is%3Afailure+branch%3Amaster to see the logs.

[riteshghorse]

tracked in #30806

[github-actions]

Reopening since the workflow is still flaky

[liferoad]

Fine now.

[github-actions]

Reopening since the workflow is still flaky