Include task queue tests in CI workflow

[akuny]

As of #51, the test suite in tests/infrastructure/test_task_queue.py cannot be executed successfully by the GitHub Actions runner. It would be good to have these tests included in the CI workflow.

Here are logs from failed runs:

https://github.com/GSA-TTS/10x-nad-ch/actions/runs/8545117160
https://github.com/GSA-TTS/10x-nad-ch/actions/runs/8557381692
https://github.com/GSA-TTS/10x-nad-ch/actions/runs/8557626495
https://github.com/GSA-TTS/10x-nad-ch/actions/runs/8575045197