Fix unit tests

Author: david0xd

app/core/Engine/controllers/snaps/snap-controller-init.test.ts

@@ -67,6 +67,7 @@ describe('SnapControllerInit', () => {
       getMnemonicSeed: expect.any(Function),
       maxIdleTime: expect.any(Number),
       preinstalledSnaps: expect.any(Array),
+      trackEvent: expect.any(Function),
     });
   });