Pilot runners: Emitting ANSII colors in a job causes job failure

Fix in gitlab-runner: gitlab-runner!6484 (2b238fce)

Failing job: https://gitlab.com/gitlab-org/gitlab-runner/-/jobs/13322084021

$ # checking GPG signing support
if [ -f  ]; then
  cat  | gpg --batch --no-tty --allow-secret-key-import --import -
  export GPG_KEYID=
  export GPG_PASSPHRASE=
else
  echo -e 2026-03-02T17:29:53.951225Z 01O /tmp/step-runner-script-3353464566.sh: line 9: 31m******: command not found