chore(deps): update node.js to v20.19.4

Author: renovate[bot]

stacks/core/package.json

@@ -14,7 +14,7 @@
     "@pulumi/pulumi": "^3.99.0"
   },
   "volta": {
-    "node": "20.14.0"
+    "node": "20.19.4"
   },
   "devDependencies": {
     "@biomejs/biome": "1.8.0"