Add ERC: Token-Bound Executable Skills - #1879

On December 2, 2026, GitHub will restrict `pull_request_target` on public repositories by default. To continue allowing the event trigger, configure an Actions policy. Learn more: https://gh.io/securely-using-pull_request_target#default-policy-for-pull_request_target

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08, andstor/file-existence-action@20b4d2e596410855db8f9ca21e96fbe18e12930b. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/