add growi-plugin-pukiwiki-like-linker for to INSTALL_PLUGINS list for Heroku

app.json

@@ -18,7 +18,7 @@
     },
     "INSTALL_PLUGINS": {
       "description": "Comma-separated list of plugin package names to install.",
-      "value": "growi-plugin-lsx",
+      "value": "growi-plugin-lsx,growi-plugin-pukiwiki-like-linker",
       "required": false
     }
   },