Bump nokogiri from 1.18.10 to 1.19.0

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.18.10 to 1.19.0.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.18.10...v1.19.0)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-version: 1.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -97,7 +97,7 @@ GEM
     nanoc-redirector (0.4.1)
       nanoc (~> 4.9)
     nenv (0.3.0)
-    nokogiri (1.18.10)
+    nokogiri (1.19.0)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     notiffany (0.1.3)