docs: update to active LTS 24 in README examples

[MikeMcC399]

Description

Update the examples in README document to use Node.js 24 (Active LTS).

Motivation and Context

The README document uses the older Node.js 22 (Maintenance LTS) version in examples. To take advantage of newer features and bug fixes, examples should use the best stable version which is Node.js 24, the Active LTS version.

Testing Details

N/A - documentation only

Types of changes

• Documentation
• Version change (Update, remove or add more Node.js versions)
• Variant change (Update, remove or add more variants, or versions of variants)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Other (none of the above)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• All new and existing tests passed.