tests: use valid verifier pubkeys in bridge tests

Author: ponzienjoyer

tests/PonziTech.BitVM.IntegrationTests/BridgeClientTests.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using Xunit;
 using NBitcoin;
 using PonziTech.BitVM.Bridge;
@@ -22,7 +23,7 @@ public BridgeClientTests()
         _config = new BridgeConfiguration
         {
             Network = BitcoinNetwork.Regtest,
-            VerifierPublicKeys = new[] { RandomUtils.GetBytes(33) }
+            VerifierPublicKeys = CreateVerifierKeys(1)
         };
         _client = new BridgeClient(_config);
     }
@@ -186,4 +187,11 @@ public void Dispose()
     {
         _client?.Dispose();
     }
+
+    private static byte[][] CreateVerifierKeys(int count)
+    {
+        return Enumerable.Range(0, count)
+            .Select(_ => new Key().PubKey.ToBytes())
+            .ToArray();
+    }
 }