Adapt the deprecated knn function to the changes #3537

Job	Run time
checks / check-style	1m 28s
devcontainer / build (amd64, 12.0, conda)	46m 24s
checks / other-checks	40s
devcontainer / build (amd64, 12.0, pip)	46m 18s
wheel-build-pylibraft	0s
conda-cpp-build	0s
conda-cpp-checks	0s
conda-python-build	0s
conda-cpp-tests	0s
wheel-tests-pylibraft	0s
wheel-build-raft-dask	0s
conda-python-tests	0s
docs-build	0s
wheel-tests-raft-dask	0s
pr-builder	1s
	1h 34m 51s

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