fix: chapter 11's dependencies

Author: mayashavin

ch11/.github/workflows/ci.yaml

@@ -22,6 +22,7 @@
  "vue-router": "^4.1.6"
  },
  "devDependencies": {
+ "@vue/test-utils": "^2.3.2",
  "@playwright/test": "^1.32.1",
  "@rushstack/eslint-patch": "^1.2.0",
  "@types/node": "^18.14.2",
@@ -38,6 +39,7 @@
  "prettier": "^2.8.4",
  "typescript": "~4.8.4",
  "vite": "^4.1.4",
+ "jsdom": "^21.1.2",
  "vitest": "^0.29.2",
  "vue-tsc": "^1.2.0"
  }