WP Rocket - Add Rocket Nginx bypass header detection

If a server configuration is using the rocket-nginx configuration, we can use this as an alternative fingerprint detection.

https://github.com/maximejobin/rocket-nginx

fixes #2661

src/apps.json

@@ -10899,7 +10899,8 @@
         23
       ],
       "headers": {
-        "X-Powered-By": "WP Rocket(?:/([\\d.]+))?\\;version:\\1"
+        "X-Powered-By": "WP Rocket(?:/([\\d.]+))?\\;version:\\1",
+        "X-Rocket-Nginx-Bypass": ""
       },
       "html": "<!--[^>]+WP Rocket",
       "icon": "WP Rocket.png",