Bump json from 2.13.2 to 2.18.0

[github-actions]

Update the json gem using bundle update --conservative.

RubyGems.org: https://rubygems.org/gems/json/versions/2.18.0

Homepage: https://github.com/ruby/json

Changelog: https://github.com/ruby/json/blob/master/CHANGES.md

Releases:

• v2.18.0
• v2.17.1
• v2.17.0
• v2.16.0
• v2.15.2
• v2.15.1
• v2.15.0
• v2.14.1
• v2.14.0

[github-actions]

Diff URLs

• https://my.diffend.io/gems/json/2.13.2/2.18.0

[github-actions]

gem compare json 2.13.2 2.18.0

Compared versions: ["2.13.2", "2.18.0"]
  DIFFERENT date:
    2.13.2: 2025-07-28 00:00:00 UTC
    2.18.0: 1980-01-02 00:00:00 UTC
  DIFFERENT require_paths:
    2.13.2: ["/opt/hostedtoolcache/Ruby/4.0.0/x64/lib/ruby/gems/4.0.0/extensions/x86_64-linux/4.0.0/json-2.13.2", "lib"]
    2.18.0: ["/opt/hostedtoolcache/Ruby/4.0.0/x64/lib/ruby/gems/4.0.0/extensions/x86_64-linux/4.0.0/json-2.18.0", "lib"]
  DIFFERENT rubygems_version:
    2.13.2: 3.6.2
    2.18.0: 3.6.9
  DIFFERENT version:
    2.13.2: 2.13.2
    2.18.0: 2.18.0
  DIFFERENT files:
    2.13.2->2.18.0:
      * Added:
            ext/json/ext/json.h +97/-0
            ext/json/ext/vendor/ryu.h +819/-0
            lib/json/add/string.rb +35/-0
      * Changed:
            CHANGES.md +76/-8
            LEGAL +12/-0
            README.md +19/-1
            ext/json/ext/fbuffer/fbuffer.h +31/-54
            ext/json/ext/generator/extconf.rb +1/-1
            ext/json/ext/generator/generator.c +279/-239
            ext/json/ext/parser/extconf.rb +2/-1
            ext/json/ext/parser/parser.c +528/-401
            ext/json/ext/simd/simd.h +15/-12
            ext/json/ext/vendor/fpconv.c +12/-11
            lib/json.rb +23/-1
            lib/json/add/core.rb +1/-0
            lib/json/common.rb +60/-23
            lib/json/ext/generator/state.rb +11/-14
            lib/json/generic_object.rb +0/-8
            lib/json/truffle_ruby/generator.rb +113/-63
            lib/json/version.rb +1/-1
  DIFFERENT extra_rdoc_files:
    2.13.2->2.18.0:
      * Changed:
            README.md +19/-1

[github-actions]

gem compare --diff json 2.13.2 2.18.0

Diff too large (204727 chars)