[WIP] fix print outputs in notebooks for 21.12

[taureandyernv]

Print actual outputs for the sparse_data instead <cupyx.scipy.sparse.csc.csc_matrix at 0x7f25e49466a0>

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Merging #9866 (e11604a) into branch-21.12 (a93d333) will not change coverage.
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@@              Coverage Diff              @@
##           branch-21.12    #9866   +/-   ##
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  Coverage         10.60%   10.60%           
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  Files               118      118           
  Lines             20081    20081           
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  Hits               2130     2130           
  Misses            17951    17951           

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[jakirkham]

Should we keep running under Python 3.8? Or is there a reason to use 3.7?

[taureandyernv]

i ran it with the nightlies docker container running 3.7 python. Do you want me to revert it with 3.8?

[shwina]

Please note that the changes in this PR are being included in the hotfix PR #9870. @taureandyernv if you decide to push further commits to your patch-2 branch, I'll merge them into that PR. This PR can be closed at any time.

[github-actions]

This PR has been labeled inactive-30d due to no recent activity in the past 30 days. Please close this PR if it is no longer required. Otherwise, please respond with a comment indicating any updates. This PR will be labeled inactive-90d if there is no activity in the next 60 days.

[shwina]

Closing as the changes in this PR were included in #9870.