Fix coverage

[Theosakamg]

Connected to #7

[codecov]

Codecov Report

Merging #10 into master will increase coverage by 1.67%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master     #10      +/-   ##
=========================================
+ Coverage   60.53%   62.2%   +1.67%     
=========================================
  Files           6       6              
  Lines         299     299              
  Branches       36      36              
=========================================
+ Hits          181     186       +5     
+ Misses        108     105       -3     
+ Partials       10       8       -2

Impacted Files	Coverage Δ
colcon_bazel/package_identification/bazel.py	91.59% <0%> (+0.84%)	⬆️
colcon_bazel/argcomplete_completer/bazel_args.py	90% <0%> (+20%)	⬆️

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