Run yarn fix (#4962)

Summary:
[js] Run yarn fix

Pull Request resolved: https://github.com/facebook/flipper/pull/4962

Reviewed By: mweststrate

Differential Revision: D47717348

Pulled By: passy

fbshipit-source-id: 15de379990509d83edf218fe9073107c9b520956

js/js-flipper/src/client.ts

@@ -292,8 +292,8 @@ export class FlipperClient {
 
       if (method === 'getBackgroundPlugins') {
         responder.success({
-          plugins: [...this.plugins.keys()].filter((key) =>
+          plugins: [...this.plugins.keys()].filter(
-            this.plugins.get(key)?.runInBackground?.(),
+            (key) => this.plugins.get(key)?.runInBackground?.(),
           ),
         });
         return;