fix(deps): align @vitest/coverage-v8 with vitest major

fix `pnpm test:coverage`

```
TypeError: this._initialize is not a function
 ❯ V8CoverageProvider.initialize node_modules/.pnpm/@vitest+coverage-v8@2.1.8_vitest@1.6.0_@types+node@20.4.2_happy-dom@10.3.2_jsdom@24.1.3_/node_modules/@vitest/coverage-v8/dist/provider.js:2554:10
 ❯ Vitest.initCoverageProvider node_modules/.pnpm/vitest@1.6.0_@types+node@20.4.2_happy-dom@10.3.2_jsdom@24.1.3/node_modules/vitest/dist/vendor/cli-api.E07AF1Yq.js:11061:35
 ❯ Vitest.start node_modules/.pnpm/vitest@1.6.0_@types+node@20.4.2_happy-dom@10.3.2_jsdom@24.1.3/node_modules/vitest/dist/vendor/cli-api.E07AF1Yq.js:11073:7
 ❯ startVitest node_modules/.pnpm/vitest@1.6.0_@types+node@20.4.2_happy-dom@10.3.2_jsdom@24.1.3/node_modules/vitest/dist/vendor/cli-api.E07AF1Yq.js:18345:7
 ❯ start node_modules/.pnpm/vitest@1.6.0_@types+node@20.4.2_happy-dom@10.3.2_jsdom@24.1.3/node_modules/vitest/dist/vendor/cac.EdDItJD-.js:1415:17
 ❯ CAC.run node_modules/.pnpm/vitest@1.6.0_@types+node@20.4.2_happy-dom@10.3.2_jsdom@24.1.3/node_modules/vitest/dist/vendor/cac.EdDItJD-.js:1395:3
```

Author: xdavidwu

package.json

@@ -96,7 +96,7 @@
     "@types/json-schema": "^7.0.12",
     "@types/markdown-it": "^13.0.7",
     "@types/node": "^20.4.2",
-    "@vitest/coverage-v8": "^2.0.5",
+    "@vitest/coverage-v8": "^1.6.1",
     "codemirror-json5": "^1.0.3",
     "happy-dom": "^10.3.2",
     "jsdom": "^24.1.1",
@@ -106,9 +106,9 @@
     "typedoc-plugin-markdown": "^3.15.3",
     "typescript": "^5.5.2",
     "vite": "^5.3.1",
+    "vite-tsconfig-paths": "^4.3.1",
     "vitest": "^1.6.0",
-    "vitest-dom": "^0.1.1",
-    "vite-tsconfig-paths": "^4.3.1"
+    "vitest-dom": "^0.1.1"
   },
   "scripts": {
     "dev": "vite ./dev --port 3000",