Bump chart.js from 3.6.2 to 4.2.1

Bumps [chart.js](https://github.com/chartjs/Chart.js) from 3.6.2 to 4.2.1.
- [Release notes](https://github.com/chartjs/Chart.js/releases)
- [Commits](chartjs/Chart.js@v3.6.2...v4.2.1)

---
updated-dependencies:
- dependency-name: chart.js
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>