Retried tests with `pytest-rerunfailures` report test results as `unknown`

[gchan]

pytest-rerunfailures is a pytest plugin to retry/rerun test failures.

The test results for rerun tests is reported by the Python Test Collector as 'unknown' for both the failed execution and the passed execution.

Internal reference: https://linear.app/buildkite/issue/TE-4941/rippling-test-reliability-score-showing-na#comment-a1094f05

And here's the log output:

platform linux -- Python 3.13.2, pytest-8.4.2, pluggy-1.6.0
rootdir: /workdir/pytest-xdist
configfile: pytest.ini
plugins: repeat-0.9.4, xdist-3.8.0, buildkite-test-collector-1.1.1, rerunfailures-12.0
3 workers [3 items]     
scheduling tests via LoadScheduling
tests/test_dynamic_skip_and_xfail.py::test_dynamic_skip
tests/test_flaky.py::test_flaky
[gw1] [ 33%] SKIPPED tests/test_dynamic_skip_and_xfail.py::test_dynamic_skip
tests/test_dynamic_skip_and_xfail.py::test_xfail_example
[gw2] [ 66%] XFAIL tests/test_dynamic_skip_and_xfail.py::test_xfail_example
[gw0] [100%] RERUN tests/test_flaky.py::test_flaky
tests/test_flaky.py::test_flaky
[gw0] [100%] PASSED tests/test_flaky.py::test_flaky

======================================================= 1 passed, 1 skipped, 1 xfailed, 1 rerun in 0.38s =======================================================