Bump nth-check in /@shanzhai/convert-svg-document-to-def-step

Bumps [nth-check](https://github.com/fb55/nth-check) from 2.0.0 to 2.0.1.
- [Release notes](https://github.com/fb55/nth-check/releases)
- [Commits](fb55/nth-check@v2.0.0...v2.0.1)

---
updated-dependencies:
- dependency-name: nth-check
  dependency-type: indirect
...

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

Author: dependabot[bot]