The PreCommit Python ML tests with ML deps installed job is flaky

[github-actions]

The PreCommit Python ML tests with ML deps installed is failing over 50% of the time.
Please visit https://github.com/apache/beam/actions/workflows/beam_PreCommit_Python_ML.yml?query=is%3Afailure+branch%3Amaster to see all failed workflow runs.
See also Grafana statistics: http://metrics.beam.apache.org/d/CTYdoxP4z/ga-post-commits-status?orgId=1&viewPanel=7&var-Workflow=PreCommit%20Python%20ML%20tests%20with%20ML%20deps%20installed

[liferoad]

Looks good with 10 runs.

[github-actions]

Reopening since the workflow is still flaky

[liferoad]

#31407 should fix this.

[liferoad]

Runs are green now:

[github-actions]

Reopening since the workflow is still flaky