use cp.around instead of cp.round for CuPy 10.x compatiblity

[grlee77]

around and round are equivalent, but round is only present in CuPy>=11. Switch to around here for compatibility with CuPy 10.x releases.

[jakirkham]

cc @drbeh

[bhashemian]

LGTM!

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Please upload report for BASE (branch-23.04@90d021e). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...rc/cucim/core/operations/color/stain_normalizer.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##             branch-23.04     #508   +/-   ##
===============================================
  Coverage                ?   92.89%           
===============================================
  Files                   ?      131           
  Lines                   ?     9905           
  Branches                ?        0           
===============================================
  Hits                    ?     9201           
  Misses                  ?      704           
  Partials                ?        0           

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[jakirkham]

@gpucibot merge

[rapids-bot]

@jakirkham, the @gpucibot merge command has been replaced with /merge.

Please re-comment this PR with /merge and use this new command in the future.

[jakirkham]

/merge

[jakirkham]

Thank you both! 🙏