Migrate Workflows relying on Node to Node24

Github will be deprecating support for Node20 in the coming months, and Node 24 will be the default used in workflows starting in March 2026. We should be proactive and migrate ahead of time before the defaults change on us.

See this blog post: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

