Bump rexml from 3.2.4 to 3.2.5

Bumps [rexml](https://github.com/ruby/rexml) from 3.2.4 to 3.2.5.
- [Release notes](https://github.com/ruby/rexml/releases)
- [Changelog](https://github.com/ruby/rexml/blob/master/NEWS.md)
- [Commits](ruby/rexml@v3.2.4...v3.2.5)

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

Gemfile.lock

@@ -150,7 +150,9 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     minitest (5.14.1)
@@ -216,7 +218,7 @@ GEM
     responders (2.4.1)
       actionpack (>= 4.2.0, < 6.0)
       railties (>= 4.2.0, < 6.0)
-    rexml (3.2.4)
+    rexml (3.2.5)
     rspec-core (3.8.0)
       rspec-support (~> 3.8.0)
     rspec-expectations (3.8.2)