added test for everything container related

src/virt/buildah/images.rs

@@ -23,7 +23,7 @@ pub struct Image {
 /// # Returns
 /// * Result with array of Image objects on success or error details
 pub fn images() -> Result<Vec<Image>, BuildahError> {
-    let result = execute_buildah_command(&["images", "--format", "json"])?;
+    let result = execute_buildah_command(&["images", "--json"])?;
     
     // Try to parse the JSON output
     match serde_json::from_str::<serde_json::Value>(&result.stdout) {