Bump nokogiri from 1.13.7 to 1.13.9

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.13.7 to 1.13.9.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.13.7...v1.13.9)

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

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

Author: dependabot[bot]

Gemfile

@@ -10,7 +10,7 @@ gem 'redcarpet'
 gem 'rake'
 gem 'gemoji'
 gem 'therubyracer'
-gem 'nokogiri', '1.13.7'
+gem 'nokogiri', '1.13.9'
 gem 'git'
 gem 'metainspector'
 gem 'kramdown-parser-gfm',	'1.1.0'

Gemfile.lock

@@ -90,10 +90,10 @@ GEM
       nokogiri (~> 1.13)
     mini_portile2 (2.8.0)
     nesty (1.0.2)
-    nokogiri (1.13.7)
+    nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    nokogiri (1.13.7-x86_64-linux)
+    nokogiri (1.13.9-x86_64-linux)
       racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
@@ -138,7 +138,7 @@ DEPENDENCIES
   jekyll-sitemap (= 1.4.0)
   kramdown-parser-gfm (= 1.1.0)
   metainspector
-  nokogiri (= 1.13.7)
+  nokogiri (= 1.13.9)
   rake
   redcarpet
   therubyracer