Bump BenchmarkDotNet from 0.13.5 to 0.13.6 (#56)

Bumps [BenchmarkDotNet](https://github.com/dotnet/BenchmarkDotNet) from 0.13.5 to 0.13.6.
- [Release notes](https://github.com/dotnet/BenchmarkDotNet/releases)
- [Commits](dotnet/BenchmarkDotNet@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/FastCache.Benchmarks/FastCache.Benchmarks.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.13.5" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.13.6" />
     <PackageReference Include="CacheManager.Core" Version="1.2.0" />
     <PackageReference Include="CacheManager.Microsoft.Extensions.Caching.Memory" Version="1.2.0" />
     <PackageReference Include="LazyCache" Version="2.4.0" />