Bump BenchmarkDotNet from 0.14.0 to 0.15.6#456

dependabot[bot] wants to merge 1 commit intomaindevlooped/Merq:mainfrom

dependabot/nuget/src/BenchmarkDotNet-0.15.6devlooped/Merq:dependabot/nuget/src/BenchmarkDotNet-0.15.6Copy head branch name to clipboard