Increase test tolerance against previous failures

The issue :
This test failed once for an unknown reason.
It did not execute to the end.
Its index was not removed.
It failed all other times due to the "already existing" index.

Author: Mubelotix

src/indexes.rs

@@ -720,11 +720,10 @@ mod tests {
         let client = Client::new("http://localhost:7700", "masterKey");
         let uid = "test_get_all_updates_no_docs";
 
-        let index = client.create_index(uid, None).await.unwrap();
+        let index = client.get_or_create(uid).await.unwrap();
         let status = index.get_all_updates().await.unwrap();
+        client.delete_index(uid).await.unwrap();
 
         assert_eq!(status.len(), 0);
-
-        client.delete_index(uid).await.unwrap();
     }
 }