Add an integration test for the parser of the parasoft-findings plugin

[uhafner]

See

• https://github.com/jenkinsci/parasoft-findings-plugin
• https://issues.jenkins.io/browse/JENKINS-62113
• https://issues.jenkins.io/browse/JENKINS-64789

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d58413e) 81.73% compared to head (545fa8a) 81.64%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #786      +/-   ##
============================================
- Coverage     81.73%   81.64%   -0.10%     
+ Complexity     1409     1407       -2     
============================================
  Files           249      249              
  Lines          5361     5361              
  Branches        399      399              
============================================
- Hits           4382     4377       -5     
- Misses          865      869       +4     
- Partials        114      115       +1     

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