Bump nokogiri from 1.14.5 to 1.15.6

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.14.5 to 1.15.6.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.14.5...v1.15.6)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: direct:production
...

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

Gemfile

@@ -8,7 +8,7 @@ gem 'rack', '2.2.8.1'
 
 gem 'capybara', '>= 3.35.0'
 gem 'cuprite', '>= 0.14.0'
-gem 'nokogiri', '~> 1.14.0'
+gem 'nokogiri', '~> 1.15.6'
 
 gem 'rake', '~> 13.0'
 

Gemfile.lock

@@ -34,8 +34,8 @@ GEM
     matrix (0.4.2)
     mini_mime (1.1.5)
     mini_portile2 (2.8.5)
-    nokogiri (1.14.5)
-      mini_portile2 (~> 2.8.0)
+    nokogiri (1.15.6)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.24.0)
     parser (3.3.0.5)
@@ -104,7 +104,7 @@ DEPENDENCIES
   capybara (>= 3.35.0)
   capybara_mock!
   cuprite (>= 0.14.0)
-  nokogiri (~> 1.14.0)
+  nokogiri (~> 1.15.6)
   rack (= 2.2.8.1)
   rake (~> 13.0)
   rspec (~> 3.0)