fix: Fix config patching for callable snippets

Author: Veykril

crates/rust-analyzer/src/config/patch_old_style.rs

@@ -117,7 +117,7 @@ pub(super) fn patch_json_for_outdated_configs(json: &mut Value) {
     ) {
         (Some(Value::Bool(true)), Some(Value::Bool(true))) => json!("fill_arguments"),
         (Some(Value::Bool(true)), _) => json!("add_parentheses"),
-        (Some(Value::Bool(false)), Some(Value::Bool(false))) => json!("add_parentheses"),
+        (Some(Value::Bool(false)), Some(Value::Bool(false))) => json!("none"),
         (_, _) => return,
     };
     merge(json, json!({ "completion": { "callable": {"snippets": res }} }));