Merge pull request #1141 from griffithlab/dependabot/bundler/server/rexml-3.3.9

Bump rexml from 3.3.6 to 3.3.9 in /server

Author: acoffman

server/Gemfile.lock

@@ -397,8 +397,7 @@ GEM
       rack (>= 1.4)
     reverse_markdown (2.1.1)
       nokogiri
-    rexml (3.3.6)
-      strscan
+    rexml (3.3.9)
     rinku (2.0.6)
     rubocop (1.62.1)
       json (~> 2.3)
@@ -498,7 +497,6 @@ GEM
       net-sftp (>= 2.1.2)
       net-ssh (>= 2.8.0)
     stringio (3.1.0)
-    strscan (3.1.0)
     thor (1.3.1)
     tilt (2.3.0)
     time (0.3.0)