Look for Id field instead of id when deserializing stats

This is needed for compatibility with Podman.

src/container.rs

@@ -772,6 +772,7 @@ pub struct Stats {
     pub precpu_stats: CPUStats,
     pub storage_stats: StorageStats,
     pub name: String,
+    #[serde(rename = "Id")]
     pub id: String,
 }