Intermittent Hangs in CI

[insertinterestingnamehere]

After some kind of runtime environment update to the github actions CI runners (as of Wednesday 9/25) we're now seeing very occasional hangs during the CI tests. This affects all Linux build configurations and happens either during the basics/arbitrary_blocking_operation test or the features/qlfqueue test.

[insertinterestingnamehere]

This will probably be a pain to debug so I don't think it's feasible to get it fixed before the upcoming release, however I have confirmed that these new failures are not caused by the new code in the release. It's an existing issue that only surfaces in the newer build environment.