Bump json from 2.5.1 to 2.6.0 (#1213)
Bump json from 2.5.1 to 2.6.0 (#1213)

Bumps [json](https://github.com/flori/json) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/flori/json/releases)
- [Changelog](https://github.com/flori/json/blob/master/CHANGES.md)
- [Commits](https://github.com/flori/json/compare/v2.5.1...v2.6.0)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
heroku/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,Scalingo/ruby-buildpack,heroku/heroku-buildpack-ruby,Scalingo/ruby-buildpack,instacart/heroku-buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile