Return immediately if client is ready

No need to wait for redis to emit "ready" if the client connection is already ready. This prevents the function to forever hang awaiting for a ready command from an already ready client.

packages/strapi-provider-rest-cache-redis/lib/index.js

@@ -23,6 +23,10 @@ function waitForRedis(client) {
       );
     };
 
+    if (client.status === "ready") {
+       return onReady();
+    }
+
     client.once("ready", onReady);
     client.once("error", onError);
   });