{Website} Fix lodash-es security vulnerability by upgrading deps and Node to 22 (#341)

Summary:
Pull Request resolved: #341

Dependabot fails to upgrade lodash-es to the safe version (4.18.1) because chevrotain@11.1.1 pins it to exactly 4.17.23.

Changes:
- Upgrade docusaurus-plugin-internaldocs-fb ^1.19.1 → ^1.19.3 (drops direct chevrotain dep, uses mermaid instead)
- Add yarn resolution langium ^4.2.2 (uses chevrotain 12.0.0 which removed lodash-es entirely)
- Upgrade Node 20 → 22 in publish-website.yml + package.json engines (chevrotain 12.0.0 requires Node ≥ 22)

After this change, all lodash-es references in yarn.lock use ^ semver ranges, allowing Dependabot to upgrade to 4.18.1.

Reviewed By: ryanfrawley

Differential Revision: D102057545

fbshipit-source-id: 39c8438a3b7c1c85b032dfc4a60f514e251916ad

Author: kongchen1992

.github/workflows/publish-website.yml

@@ -23,6 +23,10 @@ jobs:
     steps:
     - name: Checkout
       uses: actions/checkout@v4
+    - name: Set up Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: '22'
     - name: Install dependencies
       run: |
         sudo apt-get install doxygen

website/package.json

@@ -30,7 +30,7 @@
     "@mdx-js/react": "^3.1.0",
     "@types/react": "^18.3.3",
     "clsx": "^2.1.1",
-    "docusaurus-plugin-internaldocs-fb": "^1.19.1",
+    "docusaurus-plugin-internaldocs-fb": "^1.19.3",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
     "react-loadable": "^5.5.0",
@@ -70,12 +70,13 @@
     ]
   },
   "engines": {
-    "node": ">=18",
+    "node": ">=22",
     "npm": "use yarn instead",
     "yarn": "^1.5"
   },
   "resolutions": {
     "cheerio": "1.0.0-rc.12",
-    "@mdx-js/react": "^3.1.0"
+    "@mdx-js/react": "^3.1.0",
+    "langium": "^4.2.2"
   }
 }