Added missing dependency "closure-compiler"

entrypoint.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-if [ "$DEBUG" == "true"]; then
+if [ "$DEBUG" == "true" ]; then
   set -x
 fi
 set -e

includes/zulip-puppet/manifests/app_frontend.pp

@@ -61,6 +61,8 @@ class zulip::app_frontend {
                     "python-googleapi",
                     # Needed for JWT-based auth
                     "python-pyjwt",
+                    # Needed for update prod-static
+                    "closure-compiler",
                     ]
   define safepackage ( $ensure = present ) {
     if !defined(Package[$title]) {