[Django] #36678: Parallel test runner retries indefinitiely if _init_worker fails

[Django]

#36678: Parallel test runner retries indefinitiely if _init_worker fails
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Reporter: Jacob Walls | Owner: Jacob Walls
Type: Bug | Status: assigned
Component: Testing framework | Version: dev
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Recent GitHub actions were timing out after 6 hours because of an infinite
retry in the parallel test runner.

To reproduce, throw an error at the top of `_init_worker`.

We will fix the specific error source in #36677, but we should also fix
the parallel test runner to have a bound on retries.
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Ticket URL: <https://code.djangoproject.com/ticket/36678>
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