Bump nokogiri from 1.18.5 to 1.18.8 in /gemfiles/3.4

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.18.5 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@v1.18.5...v1.18.8)

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

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

Author: dependabot[bot]

gemfiles/3.4/Gemfile.lock

@@ -9,7 +9,7 @@ GEM
     ast (2.4.3)
     logger (1.7.0)
     mini_portile2 (2.8.8)
-    nokogiri (1.18.5)
+    nokogiri (1.18.8)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     onigmo (0.1.0)