PYTHON-6002 Increase wait_until timeout for test_heartbeat_awaited_flag on PyPy

[blink1073]

PYTHON-6002

Changes in this PR

test_heartbeat_awaited_flag was failing near-consistently on the pypy-3.11-ubuntu-latest GitHub Actions job (AssertionError: Didn't ever published failed event), and occasionally on evergreen hosts running PyPy. PyPy's JIT warm-up can delay the heartbeat monitor thread past the test's 10s wait_until timeout on slow CI runners.

• Bump the timeout to 30s specifically on PyPy ("PyPy" in sys.version); other interpreters keep 10s.
• Regenerated the sync mirror using just synchro.

Test Plan

• Ran 15x locally under PyPy 3.11 against a local mongod — always passed, confirming the race isn't reproducible on demand (it's CI-resource dependent), so this is a timeout fix rather than a logic fix.
• Ran pytest test/asynchronous/test_streaming_protocol.py test/test_streaming_protocol.py under both PyPy 3.11 and CPython — all pass.
• just lint and just typing pass.
• Make sure the all the pypy EVG tasks pass 2 times
• Make sure the GitHub pypy job passes 2 times

Checklist

Checklist for Author

• Did you update the changelog (if necessary)? — not needed, test-only change.
• Is there test coverage?
• Is any followup work tracked in a JIRA ticket? If so, add link(s).

Checklist for Reviewer

• Does the title of the PR reference a JIRA Ticket?
• Do you fully understand the implementation? (Would you be comfortable explaining how this code works to someone else?)
• Is all relevant documentation (README or docstring) updated?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[Copilot]

Pull request overview

Reduces PyPy-specific flakiness in the streaming protocol heartbeat test by increasing the wait_until/async_wait_until timeout only when running under PyPy, keeping existing behavior unchanged for other interpreters.

Changes:

• Add a PyPy-conditional timeout (30s on PyPy, 10s otherwise) for waiting on the failed heartbeat event.
• Apply the change to the async test source and its regenerated synchronous mirror.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
test/asynchronous/test_streaming_protocol.py	Uses a longer async_wait_until(..., timeout=...) on PyPy to avoid CI JIT warm-up delays.
test/test_streaming_protocol.py	Sync mirror regeneration of the same PyPy-conditional timeout for wait_until.

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