adding lor_ranked_v1 get_leaderboards test

test.bash

@@ -0,0 +1,2 @@
+#!/bin/bash
+RGAPI_KEY="$(cat apikey.txt)" RUST_BACKTRACE=1 cargo test --features nightly

tests/tests_na.rs

@@ -73,5 +73,11 @@ async_tests!{
             rassert!(!m.participants.is_empty(), "Match should have participants.");
             Ok(())
         },
+        // LOR
+        lor_ranked_get_leaderboards: async {
+            let future = RIOT_API.lor_ranked_v1().get_leaderboards(Region::AMERICAS);
+            let _leaderboard = future.await.map_err(|e| e.to_string())?;
+            Ok(())
+        },
     }
 }