chore: SPDX License

Author: Leechael

vmm/src/one_shot.rs

@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: © 2024-2025 Phala Network <dstack@phala.network>
+//
+// SPDX-License-Identifier: Apache-2.0
+
 use crate::app::{Image, VmConfig, VmWorkDir};
 use crate::main_service;
 use crate::config::Config;