Update main.yml node v4 node version 20

[csuyat-dot]

Description

Describe your changes and why you're making them. Please include the context, motivation, and relevant dependencies.

Updating the node and node-version to 4 and 20 respectively

Resolves # [295]

Type of change

• [x ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation

How has this been tested?

Screenshots (optional)

[github-actions[bot]]

Preview url: https://PR-296--cal-itp-reports.netlify.app