build(deps-dev): bump rexml in the bundler group across 1 directory

Bumps the bundler group with 1 update in the / directory: [rexml](https://github.com/ruby/rexml).


Updates `rexml` from 3.2.6 to 3.2.8
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.2.6...v3.2.8)

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

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

Gemfile.lock

@@ -54,7 +54,8 @@ GEM
       webrick (~> 1.8)
     rainbow (3.1.1)
     regexp_parser (2.9.1)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rubocop (1.63.5)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
@@ -82,6 +83,7 @@ GEM
       rack-protection (= 4.0.0)
       rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
+    strscan (3.1.0)
     tilt (2.3.0)
     unicode-display_width (2.5.0)
     uri (0.13.0)