fix (cypress): set default command timeout to 20 seconds

cypress.json

@@ -2,6 +2,6 @@
   "baseUrl": "http://test_site_ui:8000",
   "projectId": "92odwv",
   "adminPassword": "admin",
-  "defaultCommandTimeout": 10000,
+  "defaultCommandTimeout": 20000,
   "pageLoadTimeout": 15000
 }