Merge pull request #138 from infrablocks/dependabot/bundler/rexml-3.3.9

Bump rexml from 3.3.8 to 3.3.9 [skip ci]

Author: infrablocks-maintainers

Gemfile.lock

@@ -1671,7 +1671,7 @@ GEM
       ruby-terraform (~> 1.8)
     rchardet (1.8.0)
     regexp_parser (2.9.2)
-    rexml (3.3.8)
+    rexml (3.3.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)