ci: canonicalize release SSH command

scripts/ci/release-service.sh

@@ -133,6 +133,7 @@ if [[ "${refresh_data}" == true ]]; then
   remote_args+=(--refresh-data)
 fi
 printf -v remote_command '%q ' "${release_service_path}" "${remote_args[@]}"
+remote_command="${remote_command% }"
 
 # The command is deliberately assembled and validated on the client.
 # shellcheck disable=SC2029