Bump nokogiri from 1.16.5 to 1.18.8

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.16.5 to 1.18.8.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.16.5...v1.18.8)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-version: 1.18.8
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Gemfile

@@ -60,7 +60,7 @@ gem 'elasticsearch-persistence', '7.1.1'
 gem 'paper_trail', '13.0.0'
 gem 'graphiql-rails', git: 'https://github.com/meedan/graphiql-rails.git', ref: '8db0eac'
 gem 'graphql-formatter'
-gem 'nokogiri', '1.16.5'
+gem 'nokogiri', '1.18.8'
 gem 'puma'
 gem 'rack-attack'
 gem 'rack-cors', '1.0.6', require: 'rack/cors'

Gemfile.lock

@@ -420,7 +420,7 @@ GEM
     mime-types-data (3.2022.0105)
     mini_magick (4.10.1)
     mini_mime (1.1.5)
-    mini_portile2 (2.8.7)
+    mini_portile2 (2.8.8)
     minitest (5.19.0)
     minitest-hooks (1.5.0)
       minitest (> 5.3)
@@ -447,7 +447,7 @@ GEM
       net-protocol
     netrc (0.11.0)
     nio4r (2.7.3)
-    nokogiri (1.16.5)
+    nokogiri (1.18.8)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     numerizer (0.1.1)
@@ -635,7 +635,7 @@ GEM
       pusher-signature (~> 0.1.8)
     pusher-signature (0.1.8)
     raabro (1.4.0)
-    racc (1.8.0)
+    racc (1.8.1)
     rack (2.2.13)
     rack-attack (6.7.0)
       rack (>= 1.0, < 4)
@@ -941,7 +941,7 @@ DEPENDENCIES
   minitest-retry
   mocha (~> 2.0)
   multi_json (= 1.15.0)
-  nokogiri (= 1.16.5)
+  nokogiri (= 1.18.8)
   omniauth-facebook
   omniauth-google-oauth2!
   omniauth-slack