Prepare for 0.5.0 release - #251

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: styfle/cancel-workflow-action@3155a141048f8f89c06b4cdae32e7853e97536bc. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/