Bump dependency BenchmarkDotNet to 0.15.8 (#3581)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Directory.Packages.props

@@ -97,7 +97,7 @@
     <PackageVersion Include="AWSSDK.BedrockRuntime" Version="4.0.12" />
     <PackageVersion Include="AWSSDK.DynamoDBv2" Version="4.0.10.1" />
     <PackageVersion Include="AWSSDK.S3" Version="4.0.13.1" />
-    <PackageVersion Include="BenchmarkDotNet" Version="0.15.6" />
+    <PackageVersion Include="BenchmarkDotNet" Version="0.15.8" />
     <PackageVersion Include="CommandLineParser" Version="2.9.1" />
     <PackageVersion Include="GitHubActionsTestLogger" Version="3.0.1" />
     <PackageVersion Include="Google.Api.Gax" Version="4.12.1" />