Bump jekyll-toc from 0.17.1 to 0.18.0 (#138)

Bumps [jekyll-toc](https://github.com/toshimaru/jekyll-toc) from 0.17.1 to 0.18.0.
- [Release notes](https://github.com/toshimaru/jekyll-toc/releases)
- [Commits](toshimaru/jekyll-toc@v0.17.1...v0.18.0)

---
updated-dependencies:
- dependency-name: jekyll-toc
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

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

Gemfile

@@ -10,5 +10,5 @@ gem 'liquid-tag-parser', '~> 2.0.2'
 
 group :jekyll_plugins do
   gem 'jekyll-include-cache', '~> 0.2.1'
-  gem 'jekyll-toc', '~> 0.17.1'
+  gem 'jekyll-toc', '~> 0.18.0'
 end

Gemfile.lock

@@ -41,9 +41,9 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-sass-converter (2.2.0)
       sassc (> 2.0.1, < 3.0)
-    jekyll-toc (0.17.1)
+    jekyll-toc (0.18.0)
       jekyll (>= 3.9)
-      nokogiri (~> 1.11)
+      nokogiri (~> 1.12)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
     kramdown (2.4.0)
@@ -96,7 +96,7 @@ DEPENDENCIES
   jekyll (= 4.3.2)
   jekyll-include-cache (~> 0.2.1)
   jekyll-sass-converter (~> 2.2.0)
-  jekyll-toc (~> 0.17.1)
+  jekyll-toc (~> 0.18.0)
   liquid-tag-parser (~> 2.0.2)
   webrick