Merge pull request #6671 from microsoft/dependabot/bundler/get-started/azure-auth/ruby/rexml-3.3.9

build(deps): bump rexml from 3.3.8 to 3.3.9 in /get-started/azure-auth/ruby

get-started/azure-auth/ruby/Gemfile.lock

@@ -43,7 +43,7 @@ GEM
     public_suffix (6.0.1)
     rack (3.0.9.1)
     rake (13.2.1)
-    rexml (3.3.8)
+    rexml (3.3.9)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)