Correct the dir parameter of MSC3715 (#9391)

src/stores/widgets/StopGapWidgetDriver.ts

@@ -449,7 +449,7 @@ export class StopGapWidgetDriver extends WidgetDriver {
                 from,
                 to,
                 limit,
-                direction: dir,
+                dir,
             });
 
         return {

test/stores/widgets/StopGapWidgetDriver-test.ts

@@ -266,7 +266,7 @@ describe("StopGapWidgetDriver", () => {
                     limit: 25,
                     from: 'from-token',
                     to: 'to-token',
-                    direction: Direction.Forward,
+                    dir: Direction.Forward,
                 },
             );
         });