Bump rexml from 3.3.2 to 3.3.9

Bumps [rexml](https://github.com/ruby/rexml) from 3.3.2 to 3.3.9.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.3.2...v3.3.9)

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

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

Gemfile.lock

@@ -154,8 +154,7 @@ GEM
     rails_compatible_cookies_utils (0.1.2)
     rainbow (3.1.1)
     regexp_parser (2.9.2)
-    rexml (3.3.2)
-      strscan
+    rexml (3.3.9)
     rubocop (1.65.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
@@ -180,7 +179,6 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)
     typhoeus (1.4.1)