chore: add afterEach

Signed-off-by: nikolay <[email protected]>

Author: natanasow

packages/ws-server/tests/unit/index.spec.ts

@@ -6,6 +6,10 @@ import { ConfigService } from '../../../config-service/dist/services';
 import * as webSocketServer from '../../dist/webSocketServer';
 
 describe('main', () => {
+  afterEach(() => {
+    sinon.restore();
+  });
+
   it('should start server if ensureOperatorHasBalance succeeds', async () => {
     const appListenStub = sinon.stub(webSocketServer.app, 'listen');
     const configGetStub = sinon.stub(ConfigService, 'get').returns('127.0.0.1');