Also test if python files were changed (backport #1264)

[mergify]

I realized that the CI jobs are not running in #1259

Not that we would have any tests for rqt_jtc, but just in case we get some.

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This is an automatic backport of pull request #1264 done by Mergify.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.12%. Comparing base (dc3bd13) to head (5476773).
Report is 4 commits behind head on iron.

Additional details and impacted files

@@             Coverage Diff             @@
##             iron    #1268       +/-   ##
===========================================
- Coverage   87.31%   65.12%   -22.19%     
===========================================
  Files          92      103       +11     
  Lines        8405    11330     +2925     
  Branches      702     7153     +6451     
===========================================
+ Hits         7339     7379       +40     
- Misses        808     1459      +651     
- Partials      258     2492     +2234     

Flag	Coverage Δ
unittests	65.12% <ø> (-22.19%)	⬇️

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see 88 files with indirect coverage changes