chore: Bump rexml from 3.2.5 to 3.2.8 (ComPlat#1924)

Bumps [rexml](https://github.com/ruby/rexml) from 3.2.5 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@v3.2.5...v3.2.8)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -647,7 +647,8 @@ GEM
       railties (>= 5.0)
     reverse_markdown (2.1.1)
       nokogiri
-    rexml (3.2.5)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rmagick (5.3.0)
       pkg-config (~> 1.4)
     roo (2.9.0)
@@ -789,6 +790,7 @@ GEM
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     stackprof (0.2.22)
+    strscan (3.1.0)
     swd (1.3.0)
       activesupport (>= 3)
       attr_required (>= 0.0.5)