chore(og:image): update og:image (nodejs#2884)

Co-authored-by: Claudio Wunder <[email protected]>

Author: junwen-k

src/config.json

@@ -3,7 +3,7 @@
   "description": "Node.js® is a JavaScript runtime built on Chrome's V8 JavaScript engine.",
   "siteUrl": "https://nodejs.dev",
   "siteUrlNoSlash": "https://nodejs.dev",
-  "featuredImage": "https://nodejs.org/static/images/logo-hexagon-card.png",
+  "featuredImage": "https://nodejs.dev/static/images/og-image.png",
   "color": "#6cc24a",
   "icon": "src/images/favicon.png",
   "lang": "en",