Bump d3-color and @visx/xychart (#781)

Bumps [d3-color](https://github.com/d3/d3-color) and [@visx/xychart](https://github.com/airbnb/visx). These dependencies needed to be updated together.

Updates `d3-color` from 1.4.1 to 3.1.0
- [Release notes](https://github.com/d3/d3-color/releases)
- [Commits](d3/d3-color@v1.4.1...v3.1.0)

Updates `@visx/xychart` from 2.12.2 to 2.17.0
- [Release notes](https://github.com/airbnb/visx/releases)
- [Changelog](https://github.com/airbnb/visx/blob/master/CHANGELOG.md)
- [Commits](airbnb/visx@v2.12.2...v2.17.0)

---
updated-dependencies:
- dependency-name: d3-color
  dependency-type: indirect
- dependency-name: "@visx/xychart"
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]