[8.0] test: fix PilotWrapper test

[DIRACGridBot]

Sweep summary

Sweep ran in https://github.com/DIRACGrid/DIRAC/actions/runs/8612644970

Failed:

• integration cherry-pick 58bd1ca0c into integration failed check merge conflicts on a local copy of this repository

  git fetch upstream
  git checkout upstream/integration -b cherry-pick-2-58bd1ca0c-integration
  git cherry-pick -x -m 1 58bd1ca0c
  # Fix the conflicts
  git cherry-pick --continue
  git commit --amend -m 'sweep: #7557 test: fix PilotWrapper test' --author='Federico Stagni <federico.stagni@cern.ch>'
  git push -u origin cherry-pick-2-58bd1ca0c-integration
  
  # If you have the GitHub CLI installed the PR can be made with
  gh pr create \
     --label 'sweep:from rel-v8r0' \
     --base integration \
     --repo DIRACGrid/DIRAC \
     --title '[sweep:integration] test: fix PilotWrapper test' \
     --body 'Sweep #7557 `test: fix PilotWrapper test` to `integration`.
  
  Adding original author @fstagni as watcher.
  
  Closes #7559'