build(deps): bump rexml from 3.3.9 to 3.4.2

Bumps [rexml](https://github.com/ruby/rexml) from 3.3.9 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@v3.3.9...v3.4.2)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -44,6 +44,7 @@ GEM
       ruby2_keywords (>= 0.0.4)
     faraday-net_http (3.0.2)
     ffi (1.17.0-arm64-darwin)
+    ffi (1.17.0-x86_64-linux-gnu)
     forwardable-extended (2.6.0)
     gemoji (4.1.0)
     github-pages (231)
@@ -229,6 +230,8 @@ GEM
     mutex_m (0.3.0)
     nokogiri (1.15.6-arm64-darwin)
       racc (~> 1.4)
+    nokogiri (1.15.6-x86_64-linux)
+      racc (~> 1.4)
     octokit (4.25.1)
       faraday (>= 1, < 3)
       sawyer (~> 0.9)
@@ -239,7 +242,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rouge (3.30.0)
     ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
@@ -264,6 +267,7 @@ GEM
 
 PLATFORMS
   arm64-darwin-21
+  x86_64-linux
 
 DEPENDENCIES
   github-pages