Skips ktruss docstring example for CUDA version 11.4

[betochimas]

Addresses unit test failures affecting CUDA 11.4 builds, skips ktruss doctest and avoids assertion error. Specifically addresses cugraph-gpu-matrix-branch-22.04 in ops)

[codecov-commenter]

Codecov Report

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@@               Coverage Diff               @@
##             branch-22.04    #2074   +/-   ##
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  Files                   ?      156           
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  Hits                    ?     7592           
  Misses                  ?     2724           
  Partials                ?        0           

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[BradReesWork]

@gpucibot merge