Update `actions/setup-node` to `node24` version

[MikeMcC399]

What would you like?

Update documentation and examples to use a version of actions/setup-node that runs using node24

Why is this needed?

Documentation and examples currently use actions/setup-node@v4 which runs.using node20.

The node20 option for GitHub Actions is tied to Node.js 20 that is planned for End-of-life on Apr 30, 2026.

Supports resolution of issue https://github.com/cypress-io/github-action/issues/1519

Other

The current version actions/[email protected] suffers from a deprecation warning

(node:1957) [DEP0040] DeprecationWarning: The punycode module is deprecated. Please use a userland alternative instead. (Use node --trace-deprecation ... to show where the warning was created)

This is logged and acknowledged as an open issue https://github.com/actions/setup-node/issues/1364.