chore: only for the artifact

Author: jenstroeger

.github/workflows/_build.yaml

@@ -56,6 +56,7 @@ jobs:
 
     # Randomize the runner's timezone in order to provoke related bugs and misbehaviors.
     - name: Randomize Runner timezone
+      if: matrix.os == env.ARTIFACT_OS
       run: |
         sudo timedatectl set-timezone "$(timedatectl list-timezones | uniq | shuf --head-count 1)"
         timedatectl status