gio: restrict ListStore::new to Object types

Author: jf2048

gio/src/list_store.rs

@@ -8,7 +8,7 @@ use crate::{prelude::*, ListModel, ListStore};
 
 impl ListStore {
     #[doc(alias = "g_list_store_new")]
-    pub fn new<T: StaticType>() -> Self {
+    pub fn new<T: IsA<Object>>() -> Self {
         Self::with_type(T::static_type())
     }