benchmark: use throughput instead of average time

Author: drtheodor

src/jmh/java/dev/drtheo/autojson/benchmark/comparison/AutoVsGsonBenchmark.java

@@ -14,7 +14,7 @@
 @Measurement(iterations = 10)
 @Fork(value = 1, warmups = 1)
 @OutputTimeUnit(TimeUnit.NANOSECONDS)
-@BenchmarkMode(Mode.AverageTime)
+@BenchmarkMode(Mode.Throughput)
 @State(Scope.Thread)
 public class AutoVsGsonBenchmark {