chore: up test deps

Author: posva

package.json

@@ -126,13 +126,15 @@
     }
   },
   "devDependencies": {
+    "@vitest/coverage-v8": "^0.33.0",
     "@volar/vue-language-core": "^1.6.5",
-    "c8": "^8.0.0",
+    "@vue/test-utils": "^2.4.0",
     "chalk": "^5.3.0",
     "conventional-changelog-cli": "^2.2.2",
     "enquirer": "^2.3.6",
     "esno": "^0.17.0",
     "execa": "^7.1.1",
+    "happy-dom": "^10.5.1",
     "lint-staged": "^13.2.3",
     "minimist": "^1.2.8",
     "nodemon": "^2.0.22",
@@ -150,6 +152,7 @@
     "vitest": "^0.33.0",
     "vue": "^3.3.4",
     "vue-router": "^4.2.4",
+    "vue-router-mock": "^1.0.0",
     "webpack": "^5.88.1",
     "yorkie": "^2.0.0"
   }