fix: string representation of WriteBenchmarkArgs & ReadBenchmarkParams

Author: SockworkOrange

benchmark/BenchmarkRunner/Benchmarks/BaseReadBenchmark.cs

@@ -5,7 +5,9 @@ public readonly record struct ReadBenchmarkParams(
     int Limit,
     int Concurrency,
     int QueriesToSubmit
-);
+) {
+    public override string ToString() => $"Limit={Limit}, Concurrency={Concurrency}, Queries={QueriesToSubmit:N0}";
+}
 
 public abstract class BaseReadBenchmark
 {

benchmark/BenchmarkRunner/Benchmarks/BaseWriteBenchmark.cs

@@ -1,7 +1,9 @@
 public readonly record struct WriteBenchmarkArgs(
     int TotalRecordsToLoad,
     int BatchSize
-);
+) {
+    public override string ToString() => $"Records={TotalRecordsToLoad:N0}, BatchSize={BatchSize:N0}";
+}
 
 public abstract class BaseWriteBenchmark
 {