[SAASINT-4603] GA push security, make docs public (#22084)

Author: lli-datadog

push_security/manifest.json

@@ -3,7 +3,7 @@
   "app_uuid": "5adddeb6-b278-49b7-b124-e67642e76f51",
   "app_id": "push-security",
   "owner": "saas-integrations",
-  "display_on_public_website": false,
+  "display_on_public_website": true,
   "tile": {
     "overview": "README.md#Overview",
     "configuration": "README.md#Setup",
@@ -82,4 +82,4 @@
     "homepage": "https://www.datadoghq.com",
     "sales_email": "info@datadoghq.com"
   }
-}
+}