Bump json from 2.19.2 to 2.19.9 (#282)

Bumps [json](https://github.com/ruby/json) from 2.19.2 to 2.19.9.
- [Release notes](https://github.com/ruby/json/releases)
- [Changelog](https://github.com/ruby/json/blob/master/CHANGES.md)
- [Commits](https://github.com/ruby/json/compare/v2.19.2...v2.19.9)

---
updated-dependencies:
- dependency-name: json
  dependency-version: 2.19.9
  dependency-type: indirect
...

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

Gemfile.lock

@@ -108,7 +108,7 @@ GEM
     jekyll-watch (2.2.1)
       listen (~> 3.0)
     jekyll_custom_permalink (0.0.1)
-    json (2.19.2)
+    json (2.19.9)
     kramdown (2.5.2)
       rexml (>= 3.4.4)
     kramdown-parser-gfm (1.1.0)