chore: update minimum engine to 14.20

Author: pi0

package.json

@@ -48,9 +48,6 @@
     "ipx": "^0.9.10"
   },
   "engines": {
-    "node": ">=14.16.0"
-  },
-  "publishConfig": {
-    "access": "public"
+    "node": ">=14.20.0"
   }
 }