Update engine node in package json

Author: pcarapic15

package.json

@@ -14,7 +14,7 @@
     "gatsby-plugin-sharp/probe-image-size": "^7.0.0"
   },
   "engines": {
-    "node": "20.11.1"
+    "node": ">= 20.11.1"
   },
   "bugs": {
     "url": "https://github.com/tryghost/gatsby-starter-ghost/issues"