suppress expansion of unused raft spectral templates

[cjnolet]

Closes #2678

raft updated some k-means logic and dramatically increased the compile time of our spectral clustering implementation. This PR adds an include that will suppress the expansion of templates that we are not using.

[BradReesWork]

added labels just so CI will run

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (branch-22.10@58477c5). Click here to learn what that means.
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❗ Current head 4c2132d differs from pull request most recent head ce916dc. Consider uploading reports for the commit ce916dc to get more accurate results

Additional details and impacted files

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##             branch-22.10    #2739   +/-   ##
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[ChuckHastings]

@gpucibot merge

[vyasr]

@cjnolet good find. The underlying issue here will be fixed by rapidsai/rapids-cmake#154.

[vyasr]

For future reference the issue this PR fixes that caused #2707 to fail is that rapids-cmake's export commands don't support COMPONENTS, so the distance component requirement of libcugraph isn't being propagated to the pylibcugraph and cugraph packages. Once rapidsai/rapids-cmake#154 is merged we should be able to get rid of the extra get_raft.cmake includes.