chore: Update Chart.js v4 support for quickchart

[typpo]

Awesome Contribution Checklist:

• [x] I have read, and re-read the Contributing Guidelines
• [x] I have searched to ensure the suggested item doesn't exist on this list
• [x] This PR contains only one item

Please Describe Your Addition

Chart.js v4 support was added to QuickChart in v1.8.0, https://github.com/typpo/quickchart/pull/145