Do not reload test projects on non test systems

We do not have access to the import, so if we delete the test projects they will not get reloaded

Author: carolyncole

config/deploy.rb

@@ -53,7 +53,7 @@
 
   desc "Reload the test fixture projects from Mediaflux"
   task :reload_test_projects do
-    on roles(:rake) do
+    on roles(:test) do
       within release_path do
         execute :rake, "projects:rebuild_test_projects"
       end

config/deploy/ci.rb

@@ -4,4 +4,4 @@
 # Defines a single server with a list of roles and multiple properties.
 # You can define all roles on a single server, or split them:
 
-server "tigerdata-ci1.lib.princeton.edu", user: "deploy", roles: %w[app db web rake schema]
+server "tigerdata-ci1.lib.princeton.edu", user: "deploy", roles: %w[app db web rake schema test]

config/deploy/qa.rb

@@ -4,5 +4,5 @@
 # Defines a single server with a list of roles and multiple properties.
 # You can define all roles on a single server, or split them:
 
-server "tigerdata-qa1.princeton.edu", user: "deploy", roles: %w[app db web rake schema]
+server "tigerdata-qa1.princeton.edu", user: "deploy", roles: %w[app db web rake schema test]
 server "tigerdata-qa2.princeton.edu", user: "deploy", roles: %w[app db web]