Bump json from 2.10.2 to 2.15.0

Bumps [json](https://github.com/ruby/json) from 2.10.2 to 2.15.0.
- [Release notes](https://github.com/ruby/json/releases)
- [Changelog](https://github.com/ruby/json/blob/master/CHANGES.md)
- [Commits](ruby/json@v2.10.2...v2.15.0)

---
updated-dependencies:
- dependency-name: json
  dependency-version: 2.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile

@@ -19,7 +19,7 @@ gem "jbuilder"
 gem "bootstrap", "~> 5.1.3"
 gem "jquery-rails"
 gem "sassc-rails"
-gem "json", "~> 2.10", ">= 2.10.2"
+gem "json", "~> 2.15"
 gem "pg"
 group :development, :test do
   gem "dotenv-rails", "~> 2.7" # use 2.7 to avoid the removed `instrumenter=` method

Gemfile.lock

@@ -152,7 +152,7 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (2.10.2)
+    json (2.15.0)
     kamal (1.9.2)
       activesupport (>= 7.0)
       base64 (~> 0.2)
@@ -415,7 +415,7 @@ DEPENDENCIES
   importmap-rails
   jbuilder
   jquery-rails
-  json (~> 2.10, >= 2.10.2)
+  json (~> 2.15)
   kamal
   pg
   propshaft