Bump BenchmarkDotNet from 0.11.5 to 0.12.0 (#137)

Bumps [BenchmarkDotNet](https://github.com/dotnet/BenchmarkDotNet) from 0.11.5 to 0.12.0.
- [Release notes](https://github.com/dotnet/BenchmarkDotNet/releases)
- [Commits](dotnet/BenchmarkDotNet@v0.11.5...v0.12.0)

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

src/Hyperion.Benchmarks/Hyperion.Benchmarks.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.11.5" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.12.0" />
   </ItemGroup>
 
   <ItemGroup>