Bump nokogiri from 1.12.5 to 1.13.4 (#116)

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.12.5 to 1.13.4.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/v1.13.4/CHANGELOG.md)
- [Commits](https://github.com/sparklemotion/nokogiri/compare/v1.12.5...v1.13.4)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -10,6 +10,6 @@ group :development, :test do
   gem 'redcarpet', '~> 3.5.1'
   gem 'kramdown', '~> 2.3.1'
   gem 'kramdown-parser-gfm', '~> 1.1.0'
-  gem 'nokogiri', '~> 1.12.5'
+  gem 'nokogiri', '~> 1.13.4'
   gem "jekyll-last-modified-at", "~> 1.0"
 end

Gemfile.lock

@@ -47,15 +47,15 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    mini_portile2 (2.6.1)
-    nokogiri (1.12.5)
-      mini_portile2 (~> 2.6.1)
+    mini_portile2 (2.8.0)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     posix-spawn (0.3.15)
     public_suffix (4.0.6)
-    racc (1.5.2)
+    racc (1.6.0)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -79,7 +79,7 @@ DEPENDENCIES
   jekyll-sitemap (~> 1.2.0)
   kramdown (~> 2.3.1)
   kramdown-parser-gfm (~> 1.1.0)
-  nokogiri (~> 1.12.5)
+  nokogiri (~> 1.13.4)
   redcarpet (~> 3.5.1)
 
 BUNDLED WITH