Bump nokogiri from 1.14.3 to 1.15.3

Bumps [nokogiri](https://github.com/sparklemotion/nokogiri) from 1.14.3 to 1.15.3.
- [Release notes](https://github.com/sparklemotion/nokogiri/releases)
- [Changelog](https://github.com/sparklemotion/nokogiri/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sparklemotion/nokogiri/compare/v1.14.3...v1.15.3)

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

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

Gemfile.lock

@@ -1,11 +1,11 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    mini_portile2 (2.8.1)
-    nokogiri (1.14.3)
-      mini_portile2 (~> 2.8.0)
+    mini_portile2 (2.8.4)
+    nokogiri (1.15.3)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    racc (1.6.2)
+    racc (1.7.1)
 
 PLATFORMS
   ruby