Bump rexml from 3.2.6 to 3.2.8 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] <support@github.com>

Gemfile.lock

@@ -100,7 +100,8 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     roda (3.79.0)
       rack
     roda-route_list (2.1.0)
@@ -110,6 +111,7 @@ GEM
       activesupport (>= 6.0)
       erubi (>= 1.10)
       tilt (~> 2.0)
+    strscan (3.1.0)
     thor (1.3.1)
     tilt (2.3.0)
     tzinfo (2.0.6)