Move to Dask nightlies in CI

[jakirkham]

Currently we have code here that is installing Dask & Distributed from source. This was needed as there were not nightlies previously

cuml/ci/gpu/build.sh

Lines 122 to 126 in 76c7ffc

	gpuci_logger "Install the main version of dask and distributed"
	set -x
	pip install "git+https://github.com/dask/distributed.git@main" --upgrade --no-deps
	pip install "git+https://github.com/dask/dask.git@main" --upgrade --no-deps
	set +x

However Dask & Distributed now provide nightlies ( dask/community#76 ), which can be used instead.

Changes have been made to cuDF ( rapidsai/cudf#10182 ) and Dask-CUDA ( rapidsai/dask-cuda#897 ) to use these nightlies.

Would be good if we could use these in cuML as well.

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This issue has been labeled inactive-90d due to no recent activity in the past 90 days. Please close this issue if no further response or action is needed. Otherwise, please respond with a comment indicating any updates or changes to the original issue and/or confirm this issue still needs to be addressed.