Bump json from 2.1.0 to 2.3.1 (#3)

Bumps [json](https://github.com/flori/json) from 2.1.0 to 2.3.1.
- [Release notes](https://github.com/flori/json/releases)
- [Changelog](https://github.com/flori/json/blob/master/CHANGES.md)
- [Commits](flori/json@v2.1.0...v2.3.1)

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

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

Gemfile.lock

@@ -44,7 +44,7 @@ GEM
     http-form_data (2.3.0)
     http-parser (1.2.1)
       ffi-compiler (>= 1.0, < 2.0)
-    json (2.1.0)
+    json (2.3.1)
     kubeclient (4.6.0)
       http (>= 3.0, < 5.0)
       recursive-open-struct (~> 1.0, >= 1.0.4)