Use Expr instead of HLG

[fjetter]

Sibling to dask/dask#11736

[github-actions]

Unit Test Results

See test report for an extended history of previous test failures. This is useful for diagnosing flaky tests.

    20 files   -      7      20 suites   - 7   20h 30m 9s ⏱️ + 9h 7m 59s
 4 050 tests  -     70   2 747 ✅  -  1 246    206 💤 + 95  1 094 ❌ +1 079   3 🔥 +2 
22 032 runs   - 29 642  13 527 ✅  - 35 755  1 363 💤  - 933  7 127 ❌ +7 038  15 🔥 +8 

For more details on these failures and errors, see this check.

Results for commit 566934a. ± Comparison against base commit 55bb639.

This pull request removes 74 and adds 4 tests. Note that renamed tests count towards both.

distributed.diagnostics.tests.test_progress_widgets ‑ test_fast
distributed.diagnostics.tests.test_progress_widgets ‑ test_multibar_complete
distributed.diagnostics.tests.test_progress_widgets ‑ test_multibar_func_warns
distributed.diagnostics.tests.test_progress_widgets ‑ test_multibar_with_spans
distributed.diagnostics.tests.test_progress_widgets ‑ test_progressbar_cancel
distributed.diagnostics.tests.test_progress_widgets ‑ test_progressbar_done
distributed.diagnostics.tests.test_progress_widgets ‑ test_serializers
distributed.diagnostics.tests.test_progress_widgets ‑ test_tls
distributed.diagnostics.tests.test_progress_widgets ‑ test_values
distributed.http.scheduler.tests.test_scheduler_http ‑ test_call_stack_page[123]
…

distributed.cli.tests.test_dask_worker.test_listen_address_ipv6[tcp:..[ ‑ 1]:---nanny]
distributed.cli.tests.test_dask_worker.test_listen_address_ipv6[tcp:..[ ‑ 1]:---no-nanny]
distributed.http.scheduler.tests.test_scheduler_http ‑ test_call_stack_page[key13]
distributed.http.scheduler.tests.test_scheduler_http ‑ test_task_page[key13]

This pull request skips 95 and un-skips 2 tests.

distributed.cli.tests.test_dask_scheduler ‑ test_dashboard_allowlist
distributed.cli.tests.test_dask_scheduler ‑ test_signal_handling[15]
distributed.cli.tests.test_dask_scheduler ‑ test_signal_handling[2]
distributed.cli.tests.test_dask_scheduler ‑ test_signal_handling[Signals.SIGINT]
distributed.cli.tests.test_dask_scheduler ‑ test_signal_handling[Signals.SIGTERM]
distributed.cli.tests.test_dask_scheduler ‑ test_single_executable_deprecated
distributed.cli.tests.test_dask_spec ‑ test_signal_handling_scheduler[15]
distributed.cli.tests.test_dask_spec ‑ test_signal_handling_scheduler[2]
distributed.cli.tests.test_dask_spec ‑ test_signal_handling_worker[15-Nanny]
distributed.cli.tests.test_dask_spec ‑ test_signal_handling_worker[15-Worker]
…

distributed.diagnostics.tests.test_memory_sampler ‑ test_pandas[False]
distributed.diagnostics.tests.test_memory_sampler ‑ test_pandas[True]

♻️ This comment has been updated with latest results.