Bump ts-json-schema-generator from 2.0.1 to 2.1.0 (#926)

* Bump ts-json-schema-generator from 2.0.1 to 2.1.0

Bumps [ts-json-schema-generator](https://github.com/vega/ts-json-schema-generator) from 2.0.1 to 2.1.0.
- [Release notes](https://github.com/vega/ts-json-schema-generator/releases)
- [Changelog](https://github.com/vega/ts-json-schema-generator/blob/v2.1.0/CHANGELOG.md)
- [Commits](vega/ts-json-schema-generator@v2.0.1...v2.1.0)

---
updated-dependencies:
- dependency-name: ts-json-schema-generator
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

* Regenerate schema

---------

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

Author: dependabot[bot]