Enable gpt3 test in parallel tests

[ZhiyuLi-goog]

Description

Enable gpt3 test since not able to fully reproduce the failure b/386317358

Tests

Passed tests locally and in github runner.

Checklist

Before submitting this PR, please make sure (put X in square brackets):

• I have performed a self-review of my code.
• I have necessary comments in my code, particularly in hard-to-understand areas.
• I have run end-to-end tests tests and provided workload links above if applicable.
• I have made or will make corresponding changes to the doc if needed.

[shralex]

@ZhiyuLi-goog can we please try this again now that pr/1113 has merged

[ZhiyuLi-goog]

@ZhiyuLi-goog can we please try this again now that pr/1113 has merged

@shralex rebased and passed the test as well.

[shralex]

Thanks for checking @ZhiyuLi-goog. If its not flaky I'm ok enabling the test.
Its strange -- it was previously consistently failing on CI. Here's an example: https://github.com/AI-Hypercomputer/maxtext/actions/runs/12495995229/job/34867292227

[ZhiyuLi-goog]

Thanks for checking @ZhiyuLi-goog. If its not flaky I'm ok enabling the test. Its strange -- it was previously consistently failing on CI. Here's an example: https://github.com/AI-Hypercomputer/maxtext/actions/runs/12495995229/job/34867292227

Thank you @shralex. Enable this test now and we can always revisit it if we see the failure again.