fix: trailing spaces instead of escaped new line

Author: PierreJeanjacquot

.github/workflows/sconify.yml

@@ -200,7 +200,7 @@ jobs:
           -v /var/run/docker.sock:/var/run/docker.sock \
           -v ${{github.workspace}}/tmp/sig/enclave-key.pem:/sig/enclave-key.pem \
           registry.scontain.com/scone-production/iexec-sconify-image:${{ inputs.sconify-version }} \
-          ${{ steps.prepare-command.outputs.sconify-base-command }} \  
+          ${{ steps.prepare-command.outputs.sconify-base-command }} \
           --to=${{ steps.prepare-command.outputs.prod-image }} \
           --scone-signer=/sig/enclave-key.pem