Revert "Reduce use of project dir to be more flexible regarding custom test runs"

[okurz]

Reverts #2410 due to problems as described in https://progress.opensuse.org/issues/56789#note-23

[codecov]

Codecov Report

Merging #2433 into master will decrease coverage by 0.08%.
The diff coverage is 75.4%.

@@            Coverage Diff             @@
##           master    #2433      +/-   ##
==========================================
- Coverage   87.22%   87.14%   -0.09%     
==========================================
  Files         169      169              
  Lines       11078    11089      +11     
==========================================
  Hits         9663     9663              
- Misses       1415     1426      +11

Impacted Files	Coverage Δ
lib/OpenQA/Worker/Engines/isotovideo.pm	93.83% <100%> (+0.02%)	⬆️
lib/OpenQA/WebAPI/Controller/File.pm	91.66% <100%> (+0.26%)	⬆️
lib/OpenQA/Schema/Result/JobModules.pm	82.78% <14.28%> (-2.69%)	⬇️
lib/OpenQA/Schema/Result/Needles.pm	66.66% <50%> (-4.42%)	⬇️
lib/OpenQA/WebAPI/Controller/Step.pm	62.73% <84.61%> (-2.22%)	⬇️
lib/OpenQA/Utils.pm	92.45% <86.66%> (-0.49%)	⬇️

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[okurz]

@Martchus as I encountered problems in production when going back to the old packages as reported in the discussed ticket I leave it to your discretion to decide if we should merge this revert or have a fix which you already prepared in #2432

[Martchus]

I'll continue working on the fix. To which version did you downgrade production? Maybe something was downgraded inconsistently?

[Martchus]

I see why the problem wasn't solved by downgrading: The required part of this revert lies on the worker but according to your comment in the ticket you only downgraded the web UI.

[okurz]

@Martchus no, I had also downgraded the worker. I assumed a problem might be if I just clone old jobs with already initialized settings which could set different, unsupported values, e.g. for PRJDIR and such