build(deps): bump is-my-json-valid from 2.16.0 to 2.20.6 (#1058)

Bumps [is-my-json-valid](https://github.com/mafintosh/is-my-json-valid) from 2.16.0 to 2.20.6.
- [Release notes](https://github.com/mafintosh/is-my-json-valid/releases)
- [Commits](mafintosh/is-my-json-valid@v2.16.0...v2.20.6)

---
updated-dependencies:
- dependency-name: is-my-json-valid
  dependency-type: indirect
...

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

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