feat(test): update docker-compose file for cypress e2e testing

test/e2e/docker-compose.yml

@@ -7,13 +7,13 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
 
   cypress:
-    image: cypress/included:3.4.1
+    image: cypress/included:3.5.0
     container_name: e2e-cypress
     depends_on:
       - portainer
-    working_dir: /app
+    working_dir: /e2e
     environment:
       - CYPRESS_baseUrl=http://e2e-portainer:9000
     volumes:
-      - ./cypress:/app/cypress
-      - ./cypress.json:/app/cypress.json
+      - ./cypress:/e2e/cypress
+      - ./cypress.json:/e2e/cypress.json