Update Node.js to >= 18.20.8

Author: renovate[bot]

package.json

@@ -42,7 +42,7 @@
         "prepack": "rimraf dist && npm run build"
     },
     "engines": {
-        "node": ">= 18.19"
+        "node": ">= 18.20.8"
     },
     "packageManager": "[email protected]+sha512.9fb969fa749b3ade6035e0f109f0b8a60b5d08a1a87fdf72e337da90dcc93336e2280ca4e44f2358a649b83c17959e9993e777c2080879f3801e6f0d999ad3dd",
     "pnpm": {