Bump nokogiri from 1.16.7 to 1.18.3

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.16.7 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](sparklemotion/nokogiri@v1.16.7...v1.18.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -130,7 +130,7 @@ GEM
       net-smtp
     marcel (1.0.4)
     mini_mime (1.1.5)
-    mini_portile2 (2.8.7)
+    mini_portile2 (2.8.8)
     minitest (5.25.1)
     minitest-stub_any_instance (1.0.3)
     msgpack (1.7.0)
@@ -144,7 +144,7 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.7)
+    nokogiri (1.18.3)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.22.1)