Merge pull request #165 from dokku/dependabot/bundler/dot-github/rexml-3.3.9

chore(deps): bump rexml from 3.3.6 to 3.3.9 in /.github

Author: josegonzalez

.github/Gemfile.lock

@@ -47,9 +47,7 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
-    rexml (3.3.6)
-      strscan
-    strscan (3.1.0)
+    rexml (3.3.9)
     stud (0.0.23)
     thor (1.3.1)