Bump nokogiri in the bundler group across 1 directory (#1028)

Bumps the bundler group with 1 update in the / directory: [nokogiri](https://github.com/sparklemotion/nokogiri).


Updates `nokogiri` from 1.18.4 to 1.18.8
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.18.4...v1.18.8)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-version: 1.18.8
  dependency-type: indirect
  dependency-group: bundler
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -104,7 +104,7 @@ GEM
     mercenary (0.4.0)
     mini_portile2 (2.8.8)
     minitest (5.25.1)
-    nokogiri (1.18.4)
+    nokogiri (1.18.8)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     pathutil (0.16.2)