Bump nokogiri from 1.14.0 to 1.15.5

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.14.0 to 1.15.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.14.0...v1.15.5)

---
updated-dependencies:
- dependency-name: nokogiri
  dependency-type: direct:production
...

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

Gemfile.lock

@@ -51,14 +51,14 @@ GEM
       nokogiri (>= 1.5.9)
     method_source (1.0.0)
     minitest (5.17.0)
-    nokogiri (1.14.0-x86_64-darwin)
+    nokogiri (1.15.5-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.14.0-x86_64-linux)
+    nokogiri (1.15.5-x86_64-linux)
       racc (~> 1.4)
     openssl (3.1.0)
     psych (5.0.1)
       stringio
-    racc (1.6.2)
+    racc (1.7.3)
     rack (2.2.6.3)
     rack-test (2.0.2)
       rack (>= 1.3)