fix clippy check error

use `unwrap_or_default` to fix clippy check error.

Signed-off-by: ChengyuZhu6 <[email protected]>

Author: ChengyuZhu6

src/annotations.rs

@@ -18,7 +18,7 @@ pub(crate) fn update_annotations(
     device_id: &str,
     devices: Vec<String>,
 ) -> Result<HashMap<String, String>> {
-    let mut annotations = option_annotations.unwrap_or_else(HashMap::new);
+    let mut annotations = option_annotations.unwrap_or_default();
 
     let key = annotation_key(plugin_name, device_id).context("CDI annotation key failed")?;
     if annotations.contains_key(&key) {