chore: Update engine requirement (#9762)

nodejs/node#51118
https://github.com/nodejs/node/releases/tag/v18.20.0

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## PR-Codex overview
This PR updates the minimum required Node version to `>=18.20.0`.

### Detailed summary
- Updated the minimum required Node version in `package.json` from
`>=18.0.0` to `>=18.20.0`.

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package.json

@@ -45,7 +45,7 @@
     "prepare": "husky install"
   },
   "engines": {
-    "node": ">=18.0.0"
+    "node": ">=18.20.0"
   },
   "devDependencies": {
     "@changesets/cli": "^2.27.1",