Bump nokogiri from 1.16.5 to 1.18.3

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.16.5 to 1.18.3.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/v1.18.3/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.16.5...v1.18.3)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -81,7 +81,7 @@ GEM
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.18.3-x86_64-linux-gnu)
       racc (~> 1.4)
     parallel (1.24.0)
     parser (3.2.2.4)
@@ -98,7 +98,7 @@ GEM
     pkg-config (1.5.6)
     posix-spawn (0.3.15)
     public_suffix (5.0.4)
-    racc (1.7.3)
+    racc (1.8.1)
     rainbow (3.1.1)
     rake (13.1.0)
     rb-fsevent (0.11.2)