Fix parsing for mixture of Kotlin and CMake output

[DennisBauer]

For projects with a mixture of Kotlin and CMake compiles the output of both can be mixed depending on the order of the tasks. The working path defined by the CMake output should not be used for warnings which already print out absolute paths e.g. Kotlin warnings. It should only be used if the path is a relative path.

Testing done

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6. Ensure you have provided tests - that demonstrates feature works or fixes the issue

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (93172ec) 93.09% compared to head (5aab948) 93.08%.
Report is 5 commits behind head on main.

Files	Patch %	Lines
...main/java/edu/hm/hafner/analysis/IssueBuilder.java	88.88%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #991      +/-   ##
============================================
- Coverage     93.09%   93.08%   -0.01%     
- Complexity     2382     2386       +4     
============================================
  Files           347      347              
  Lines          6603     6612       +9     
  Branches        687      689       +2     
============================================
+ Hits           6147     6155       +8     
- Misses          256      257       +1     
  Partials        200      200              

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[uhafner]

Thanks for your pull request! Just a small simplification would be helpful.

[DennisBauer]

To make sure this works for building on all platforms, I also added a Windows path to the log and did some adjustments for it to work as well.

[uhafner]

The code looks good now! Only the tests could use better assertions for the file names.