Bump nokogiri from 1.16.8 to 1.18.3 in /frameworks/Ruby/rails

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.16.8 to 1.18.3.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/v1.18.3/CHANGELOG.md)
- [Commits](https://github.com/sparklemotion/nokogiri/compare/v1.16.8...v1.18.3)

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

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

frameworks/Ruby/rails/Gemfile.lock

@@ -167,12 +167,12 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.4)
-    nokogiri (1.16.8)
+    nokogiri (1.18.3)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.16.8-x86_64-darwin)
+    nokogiri (1.18.3-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.8-x86_64-linux)
+    nokogiri (1.18.3-x86_64-linux-gnu)
       racc (~> 1.4)
     openssl (3.2.0)
     pg (1.5.9)