Increase Sorting invocations per iteration by 10x, since the benchmark currently runs each iteration in 10ms or so.

Author: AndyAyersMS

src/benchmarks/micro/coreclr/Span/Sorting.cs

@@ -14,7 +14,7 @@ namespace Span
     [InvocationCount(InvocationsPerIteration)]
     public class Sorting
     {
-        private const int InvocationsPerIteration = 1000;
+        private const int InvocationsPerIteration = 10_000;
 
         [Params(Utils.DefaultCollectionSize)]
         public int Size;