[wrangler] Update smol-toml to 1.8.0 - #15662

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: Ana06/get-changed-files@25f79e676e7ea1868813e21465014798211fad8c. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/