Merge pull request #650 from citizensadvice/dependabot/bundler/rexml-3.4.2

[dependabot:bundler] Bump rexml from 3.4.1 to 3.4.2

Author: marianayovcheva

Gemfile.lock

@@ -407,7 +407,7 @@ GEM
     regexp_parser (2.11.2)
     reline (0.6.2)
       io-console (~> 0.5)
-    rexml (3.4.1)
+    rexml (3.4.2)
     rich_text_renderer (0.3.3)
     rspec-core (3.13.5)
       rspec-support (~> 3.13.0)