[ci] prefer CPython in Windows test environment and use safer approach for cleaning up network (fixes #5509)#5510

Merged

jameslamb merged 33 commits intomasterfrom

Oct 7, 2022

Commits on Sep 30, 2022

use new cluster for each dask test
shiyu1994
committed

Commits on Oct 6, 2022

Commits on Oct 7, 2022

try removing timeout on test_machines_should_be_used_if_provided()
jameslamb
committed