fix benchmark failures

Author: conduition

frost-core/src/benches.rs

@@ -50,7 +50,7 @@ pub fn bench_batch_verify<C: Ciphersuite, R: RngCore + CryptoRng + Clone>(
                         let msg = b"Bench";
 
                         let Item { vk, sig } = item;
-                        let _ = vk.verify(msg, sig);
+                        let _ = vk.verify(msg, &sig);
                     }
                 })
             },
@@ -67,7 +67,7 @@ pub fn bench_batch_verify<C: Ciphersuite, R: RngCore + CryptoRng + Clone>(
                         let msg = b"Bench";
 
                         let Item { vk, sig } = item;
-                        batch.queue((*vk, *sig, msg));
+                        batch.queue((vk.clone(), sig.clone(), msg));
                     }
                     batch.verify(&mut rng)
                 })