Fix GPU CI

[ethanwharris]

What does this PR do?

Fixes # (issue)

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[codecov]

Codecov Report

Merging #557 (654c4ea) into master (ddd85f0) will increase coverage by 1.51%.
The diff coverage is 22.22%.

@@            Coverage Diff             @@
##           master     #557      +/-   ##
==========================================
+ Coverage   89.80%   91.32%   +1.51%     
==========================================
  Files         112      112              
  Lines        7193     7196       +3     
==========================================
+ Hits         6460     6572     +112     
+ Misses        733      624     -109     

Flag	Coverage Δ
unittests	91.32% <22.22%> (+1.51%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
flash/image/classification/model.py	86.66% <0.00%> (ø)
flash/tabular/classification/model.py	93.18% <0.00%> (ø)
flash/text/classification/model.py	93.18% <0.00%> (+22.72%)	⬆️
flash/video/classification/model.py	86.41% <0.00%> (ø)
flash/core/data/data_module.py	93.53% <66.66%> (+0.08%)	⬆️
flash/text/seq2seq/translation/model.py	76.19% <0.00%> (+4.76%)	⬆️
flash/text/seq2seq/summarization/model.py	80.00% <0.00%> (+5.00%)	⬆️
flash/text/seq2seq/core/model.py	73.91% <0.00%> (+7.24%)	⬆️
flash/text/seq2seq/core/data.py	92.00% <0.00%> (+20.00%)	⬆️
... and 3 more

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