Bump BenchmarkDotNet from 0.13.5 to 0.13.6 in /gremlin-dotnet

Bumps [BenchmarkDotNet](https://github.com/dotnet/BenchmarkDotNet) from 0.13.5 to 0.13.6.
- [Release notes](https://github.com/dotnet/BenchmarkDotNet/releases)
- [Commits](https://github.com/dotnet/BenchmarkDotNet/compare/v0.13.5...v0.13.6)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/gremlin-dotnet/test/Gremlin.Net.Benchmarks/Gremlin.Net.Benchmarks.csproj b/gremlin-dotnet/test/Gremlin.Net.Benchmarks/Gremlin.Net.Benchmarks.csproj
index 723184c..f423535 100644
--- a/gremlin-dotnet/test/Gremlin.Net.Benchmarks/Gremlin.Net.Benchmarks.csproj
+++ b/gremlin-dotnet/test/Gremlin.Net.Benchmarks/Gremlin.Net.Benchmarks.csproj
@@ -6,7 +6,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
+      <PackageReference Include="BenchmarkDotNet" Version="0.13.6" />
     </ItemGroup>
 
     <ItemGroup>