chore: Relax node version constraint for CI

package.json

@@ -3,7 +3,7 @@
   "version": "0.0.0",
   "private": true,
   "engines": {
-    "node": ">= 20"
+    "node": ">= 18"
   },
   "scripts": {
     "watch": "lerna run watch --parallel",