feat: install node using Corepack instead of Yarn APT to avoid GPG errors (#2)

Author: tjzijlstra

devcontainer.json.sample

@@ -45,7 +45,9 @@
   "features": {
     "ghcr.io/devcontainers/features/git:1": {},
     "ghcr.io/devcontainers/features/github-cli:1": {},
-    "ghcr.io/devcontainers/features/node:1": {},
+    "ghcr.io/devcontainers/features/node:1": {
+      "installYarnUsingApt": false
+    },
     "ghcr.io/anthropics/devcontainer-features/claude-code:1.0": {}
   },
   "hostRequirements": {