fix(deps): update dependency d3-dsv to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
d3-dsv (source)	dependencies	major	1.2.0 -> 2.0.0

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Release Notes

d3/d3-dsv

### [`v2.0.0`](https://togithub.com/d3/d3-dsv/releases/v2.0.0) [Compare Source](https://togithub.com/d3/d3-dsv/compare/v1.2.0...v2.0.0) - Add `-a` `--auto-type` flag to [dsv2json](https://togithub.com/d3/d3-dsv/blob/master/README.md#dsv2json) to use [d3.autoType](https://togithub.com/d3/d3-dsv/blob/master/README.md#autoType). Thanks, [@​joallard](https://togithub.com/joallard)! This release adopts ES2015 language features such as [for-of](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of) and drops support for older browsers, including IE. If you need to support pre-ES2015 environments, you should stick with d3-dsv 1.x or use a transpiler.

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