Fix same system inputs

Dependencies

• [2] PMNWRTGJ Add multiple output support
• [3] KQS7DSKJ * Clean up indentation.
• [4] YFPZ46YK * hydra: added variant of build input type, 'build output (same system)' to allow better continous integration in one jobset for multiple system. it makes sure that the system of the build that is passed as input for a job has the same system as the job.
• [*] OOQ2D3KC * Refactoring: move fetchInput out of hydra_scheduler into a separate

Change contents

• replacement in src/lib/Hydra/Helper/AddBuilds.pm at line 276
  [3.5249]→[2.4808:4889](∅→∅)
  − push(@validBuilds, $build) if !isValidPath(getMainOutput($build)->path);
  [3.5249]

  [3.5317]
  + push(@validBuilds, $build) if isValidPath(getMainOutput($build)->path);