Bump BenchmarkDotNet from 0.12.1 to 0.13.0 (#129)

Bumps [BenchmarkDotNet](https://github.com/dotnet/BenchmarkDotNet) from 0.12.1 to 0.13.0.
- [Release notes](https://github.com/dotnet/BenchmarkDotNet/releases)
- [Commits](dotnet/BenchmarkDotNet@v0.12.1...v0.13.0)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/GraphQLParser.Benchmarks/GraphQLParser.Benchmarks.csproj

@@ -15,7 +15,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\GraphQLParser\GraphQLParser.csproj" />
-    <PackageReference Include="BenchmarkDotNet" Version="0.12.1" />
+    <PackageReference Include="BenchmarkDotNet" Version="0.13.0" />
   </ItemGroup>
 
 </Project>