deps: Bump BenchmarkDotNet from 0.13.2 to 0.15.8

---
updated-dependencies:
- dependency-name: BenchmarkDotNet
  dependency-version: 0.15.8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

tests/benchmarks/SharpCoreDB.Benchmarks/SharpCoreDB.Benchmarks.csproj

@@ -1,39 +1,39 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
-    <OutputType>Exe</OutputType>
-    <LangVersion>14.0</LangVersion>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <Version>1.5.0</Version>
-    <IsPackable>false</IsPackable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.2" />
-    <PackageReference Include="System.Text.Json" Version="10.0.0" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <!-- BLite for document/CRUD benchmarks -->
-    <PackageReference Include="BLite" Version="0.9.0" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <!-- Note: Zvec is Java-based; benchmarks will use process invocation or embedded evaluation -->
-    <!-- For now, we include a placeholder; actual Zvec integration handled separately -->
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\..\src\SharpCoreDB\SharpCoreDB.csproj" />
-    <ProjectReference Include="..\..\..\src\SharpCoreDB.EventSourcing\SharpCoreDB.EventSourcing.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <None Update="BenchmarkConfig.json">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </None>
-  </ItemGroup>
-
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <OutputType>Exe</OutputType>
+    <LangVersion>14.0</LangVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <Version>1.5.0</Version>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
+    <PackageReference Include="System.Text.Json" Version="10.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <!-- BLite for document/CRUD benchmarks -->
+    <PackageReference Include="BLite" Version="0.9.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <!-- Note: Zvec is Java-based; benchmarks will use process invocation or embedded evaluation -->
+    <!-- For now, we include a placeholder; actual Zvec integration handled separately -->
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\src\SharpCoreDB\SharpCoreDB.csproj" />
+    <ProjectReference Include="..\..\..\src\SharpCoreDB.EventSourcing\SharpCoreDB.EventSourcing.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="BenchmarkConfig.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>