Merge pull request #738 from jpogran/update-code-owners

(maint) Update codeowners with devx team

Author: sanfrancrisko

.github/CODEOWNERS

@@ -5,4 +5,4 @@
 # the repo. Unless a later match takes precedence,
 # @global-owner1 and @global-owner2 will be requested for
 # review when someone opens a pull request.
-*       @jpogran @glennsarti
+*       @jpogran @glennsarti @puppetlabs/devx