MINOR: [C#] Bump BenchmarkDotNet from 0.13.9 to 0.15.2#5

dependabot[bot] wants to merge 1 commit intomasterzerowinter0/my_arrow:masterfrom

dependabot/nuget/csharp/test/Apache.Arrow.Benchmarks/BenchmarkDotNet-0.15.2zerowinter0/my_arrow:dependabot/nuget/csharp/test/Apache.Arrow.Benchmarks/BenchmarkDotNet-0.15.2Copy head branch name to clipboard