Bump nokogiri from 1.16.2 to 1.16.5 in /examples/rails

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.16.2 to 1.16.5.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](sparklemotion/nokogiri@v1.16.2...v1.16.5)

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

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

examples/rails/Gemfile.lock

@@ -188,7 +188,7 @@ GEM
       net-smtp
     marcel (1.0.4)
     mini_mime (1.1.5)
-    mini_portile2 (2.8.5)
+    mini_portile2 (2.8.6)
     minitest (5.22.2)
     multi_json (1.15.0)
     mutex_m (0.2.0)
@@ -204,7 +204,7 @@ GEM
     net-smtp (0.4.0.1)
       net-protocol
     nio4r (2.7.0)
-    nokogiri (1.16.2)
+    nokogiri (1.16.5)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     os (1.1.4)