The "Enable lingering" task always reported changed=true, and the
"Download gitea_runner binary" task used force=true which always
re-downloads. Both caused molecule idempotence tests to fail.
- Check /var/lib/systemd/linger/<user> before enabling lingering
- Set force=false on get_url so binary is only downloaded if missing
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>