fix ut test

Signed-off-by: jokemanfire <hu.dingyang@zte.com.cn>

Author: jokemanfire

crates/runc/src/asynchronous/runc.rs

@@ -320,6 +320,7 @@ impl Spawner for DefaultExecutor {
 }
 
 #[cfg(test)]
+#[cfg(target_os = "linux")]
 mod tests {
     use std::sync::Arc;
 

crates/runc/src/synchronous/runc.rs

@@ -257,6 +257,7 @@ impl Spawner for DefaultExecutor {
 }
 
 #[cfg(test)]
+#[cfg(target_os = "linux")]
 mod tests {
     use std::sync::Arc;