Bump nokogiri from 1.18.5 to 1.18.6

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.18.5 to 1.18.6.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.18.5...v1.18.6)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -1611,7 +1611,7 @@ GEM
       net-ssh (>= 2.6.5, < 8.0.0)
     net-ssh (7.2.3)
     net-telnet (0.2.0)
-    nokogiri (1.18.5)
+    nokogiri (1.18.6)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     octokit (8.1.0)