Bump json from 2.7.1 to 2.7.2

Bumps [json](https://github.com/flori/json) from 2.7.1 to 2.7.2.
- [Release notes](https://github.com/flori/json/releases)
- [Changelog](https://github.com/flori/json/blob/master/CHANGES.md)
- [Commits](flori/json@v2.7.1...v2.7.2)

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

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

Gemfile.lock

@@ -21,7 +21,7 @@ GEM
     clamp (1.0.1)
     dotenv (2.8.1)
     insist (1.0.0)
-    json (2.7.1)
+    json (2.7.2)
     mustache (0.99.8)
     pleaserun (0.0.32)
       cabin (> 0)