Bump rexml from 3.4.0 to 3.4.2

Bumps [rexml](https://github.com/ruby/rexml) from 3.4.0 to 3.4.2.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.4.0...v3.4.2)

---
updated-dependencies:
- dependency-name: rexml
  dependency-version: 3.4.2
  dependency-type: indirect
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -11,6 +11,7 @@ GEM
     eventmachine (1.2.7)
     ffi (1.17.2-arm64-darwin)
     ffi (1.17.2-x86_64-darwin)
+    ffi (1.17.2-x86_64-linux-gnu)
     forwardable-extended (2.6.0)
     http_parser.rb (0.8.0)
     i18n (1.14.7)
@@ -52,7 +53,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.4.0)
+    rexml (3.4.2)
     rouge (3.30.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
@@ -65,6 +66,7 @@ GEM
 PLATFORMS
   arm64-darwin-25
   x86_64-darwin-24
+  x86_64-linux
 
 DEPENDENCIES
   jekyll-seo-tag