⬆️ Bump json from 2.8.1 to 2.8.2 (#169)

Bumps [json](https://github.com/ruby/json) from 2.8.1 to 2.8.2.
- [Release notes](https://github.com/ruby/json/releases)
- [Changelog](https://github.com/ruby/json/blob/master/CHANGES.md)
- [Commits](ruby/json@v2.8.1...v2.8.2)

---
updated-dependencies:
- dependency-name: json
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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