fix(ci): run content-server server tests

.circleci/test-content-server.sh

@@ -57,7 +57,7 @@ if grep -e "$MODULE" -e 'all' $DIR/../packages/test.list; then
     test_suite pairing
 
     mozinstall firefox.tar.bz2
-    # test_suite server
+    test_suite server
 
   else
     mozinstall firefox.tar.bz2