Bump AngleSharp from 1.1.2 to 1.2.0

Bumps [AngleSharp](https://github.com/AngleSharp/AngleSharp) from 1.1.2 to 1.2.0.
- [Release notes](https://github.com/AngleSharp/AngleSharp/releases)
- [Changelog](https://github.com/AngleSharp/AngleSharp/blob/devel/CHANGELOG.md)
- [Commits](AngleSharp/AngleSharp@1.1.2...1.2.0)

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

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

Author: dependabot[bot]

Benchmarks/Benchmarks.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="AngleSharp" Version="1.1.2" />
+    <PackageReference Include="AngleSharp" Version="1.2.0" />
     <PackageReference Include="BenchmarkDotNet" Version="0.14.0" />
     <PackageReference Include="HtmlPerformanceKit" Version="1.0.0" />
   </ItemGroup>