Fix GPU build in CI

[rusty1s]

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[codecov-commenter]

Codecov Report

Merging #56 (de96181) into master (941b77f) will not change coverage.
The diff coverage is n/a.

❗ Current head de96181 differs from pull request most recent head 5bcb072. Consider uploading reports for the commit 5bcb072 to get more accurate results

@@           Coverage Diff           @@
##           master      #56   +/-   ##
=======================================
  Coverage   90.68%   90.68%           
=======================================
  Files          13       13           
  Lines         247      247           
=======================================
  Hits          224      224           
  Misses         23       23           

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