chore: Bump BenchmarkDotNet from 0.14.0 to 0.15.6 (#238)

---
updated-dependencies:
- dependency-name: BenchmarkDotNet
  dependency-version: 0.15.6
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -27,7 +27,7 @@
 	</ItemGroup>
 	<ItemGroup>
 		<PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.0.0"/>
-		<PackageVersion Include="BenchmarkDotNet" Version="0.14.0"/>
+		<PackageVersion Include="BenchmarkDotNet" Version="0.15.6"/>
 		<PackageVersion Include="xunit" Version="2.9.3"/>
 		<PackageVersion Include="xunit.v3" Version="3.2.0"/>
 		<PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5"/>