Bump rexml from 3.3.3 to 3.3.6 in the bundler group (#70)

Author: dependabot[bot]

Gemfile.lock

@@ -18,7 +18,7 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     regexp_parser (2.9.0)
-    rexml (3.3.3)
+    rexml (3.3.6)
       strscan
     rubocop (1.62.1)
       json (~> 2.3)