Fix broken test

Author: MidhunSureshR

test/stores/ReleaseAnnouncementStore-test.tsx

@@ -101,8 +101,8 @@ describe("ReleaseAnnouncementStore", () => {
 
         const promise = listenReleaseAnnouncementChanged();
         await releaseAnnouncementStore.nextReleaseAnnouncement();
-        // Currently there is only one feature, so the next feature should be null
-        expect(await promise).toBeNull();
+
+        expect(await promise).toBe("newRoomHeader");
         expect(releaseAnnouncementStore.getReleaseAnnouncement()).toBeNull();
 
         const secondStore = new ReleaseAnnouncementStore();
@@ -118,8 +118,7 @@ describe("ReleaseAnnouncementStore", () => {
         const promise = listenReleaseAnnouncementChanged();
         await secondStore.nextReleaseAnnouncement();
 
-        // Currently there is only one feature, so the next feature should be null
-        expect(await promise).toBeNull();
+        expect(await promise).toBe("newRoomHeader");
         expect(releaseAnnouncementStore.getReleaseAnnouncement()).toBeNull();
     });
 });