test(game-detail): wait for points refetch instead of fixed sleep

src/pages/GameDetail.points.test.jsx

@@ -38,6 +38,5 @@ it('checksThePointsAgainAfterTheAchievementRefresh', async () => {
 
     // The refresh stored the ending achievement: Core would settle the finish now (the old single call did).
     finishRefresh(json(200, {...game, achievementsStale: false, achievementsUnlocked: 5}));
-    await new Promise((resolve) => setTimeout(resolve, 50));
+    await waitFor(() => expect(pointsCalls()).toBe(2));
-    expect(pointsCalls()).toBe(2);
 });