⬆️ 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: direct:production
...

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

Author: dependabot[bot]

Gemfile

@@ -9,4 +9,4 @@ git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
  gem "github-pages", group: :jekyll_plugins
  gem "bulma-clean-theme"
 
- gem "rexml", "~> 3.3"
+ gem "rexml", "~> 3.4"

Gemfile.lock

@@ -225,7 +225,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.3.9)
+    rexml (3.4.2)
     rouge (3.13.0)
     ruby-enum (0.7.2)
       i18n
@@ -257,7 +257,7 @@ DEPENDENCIES
   bulma-clean-theme
   github-pages
   jekyll
-  rexml (~> 3.3)
+  rexml (~> 3.4)
   webrick
 
 BUNDLED WITH