Merge pull request #1443 from adafruit/dependabot/bundler/rexml-3.3.3

Bump rexml from 3.2.8 to 3.3.3

Author: makermelissa

Gemfile.lock

@@ -69,8 +69,8 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
+    rexml (3.3.3)
+      strscan
     rouge (4.1.0)
     ruby-vips (2.1.4)
       ffi (~> 1.12)