fix: Add a missing import

[captainhammy]

fixes: #30

[codecov]

Codecov Report

Merging #31 (db50296) into main (08a7f5b) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #31   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           18        18           
  Lines         1225      1226    +1     
  Branches       221       221           
=========================================
+ Hits          1225      1226    +1     

Impacted Files	Coverage Δ
...rc/houdini_package_runner/runners/flake8/runner.py	100.00% <100.00%> (ø)

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