style(rust): fixed formating in main

rust/src/main.rs

@@ -60,7 +60,10 @@ async fn main() -> Result<(), CommandError> {
         }
     };
 
-    println!("{}", CommandError::InvalidArgument(ArgsError::InvalidConfigExtension(Some(String::from("txt")))));
+    println!(
+        "{}",
+        CommandError::InvalidArgument(ArgsError::InvalidConfigExtension(Some(String::from("txt"))))
+    );
 
     Ok(())
 }