Bump nokogiri from 1.14.5 to 1.15.5 in /back

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.14.5 to 1.15.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.14.5...v1.15.5)

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

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

back/Gemfile

@@ -111,7 +111,7 @@ gem 'interactor'
 gem 'interactor-rails'
 gem 'liquid', '~> 5.4'
 gem 'mini_magick', '~> 4.12'
-gem 'nokogiri', '~> 1.14.3'
+gem 'nokogiri', '~> 1.15.5'
 gem 'pg_search', '~> 2.3.5'
 gem 'premailer-rails', '~> 1.12.0'
 gem 'rest-client'

back/Gemfile.lock

@@ -834,13 +834,13 @@ GEM
     nio4r (2.5.9)
     nlpcloud (1.0.43)
       rest-client (~> 2.1)
-    nokogiri (1.14.5-aarch64-linux)
+    nokogiri (1.15.5-aarch64-linux)
       racc (~> 1.4)
-    nokogiri (1.14.5-arm64-darwin)
+    nokogiri (1.15.5-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.5-x86_64-darwin)
+    nokogiri (1.15.5-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.5-x86_64-linux)
+    nokogiri (1.15.5-x86_64-linux)
       racc (~> 1.4)
     nori (2.6.0)
     oauth2 (1.4.9)
@@ -939,7 +939,7 @@ GEM
     que-web (0.10.0)
       que (>= 1)
       sinatra
-    racc (1.7.1)
+    racc (1.7.3)
     rack (2.2.8)
     rack-attack (6.6.1)
       rack (>= 1.0, < 3)
@@ -998,7 +998,6 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rb_sys (0.9.81)
     rbtree (0.4.6)
     redcarpet (3.6.0)
     regexp_parser (2.8.0)
@@ -1169,8 +1168,10 @@ GEM
     thor (1.2.2)
     thread (0.2.2)
     thread_safe (0.3.6)
-    tiktoken_ruby (0.0.5)
-      rb_sys (~> 0.9.68)
+    tiktoken_ruby (0.0.5-aarch64-linux)
+    tiktoken_ruby (0.0.5-arm64-darwin)
+    tiktoken_ruby (0.0.5-x86_64-darwin)
+    tiktoken_ruby (0.0.5-x86_64-linux)
     tilt (2.1.0)
     timeout (0.4.0)
     tomlrb (2.0.3)
@@ -1308,7 +1309,7 @@ DEPENDENCIES
   moderation!
   multi_tenancy!
   nlp!
-  nokogiri (~> 1.14.3)
+  nokogiri (~> 1.15.5)
   okcomputer
   omniauth (~> 1.9.1)
   omniauth-facebook