build(deps): Bump AngleSharp.Diffing from 0.18.1 to 0.18.2 (#1135)

Bumps [AngleSharp.Diffing](https://github.com/AngleSharp/AngleSharp.Diffing) from 0.18.1 to 0.18.2.
- [Release notes](https://github.com/AngleSharp/AngleSharp.Diffing/releases)
- [Changelog](https://github.com/AngleSharp/AngleSharp.Diffing/blob/devel/CHANGELOG.md)
- [Commits](AngleSharp/AngleSharp.Diffing@v0.18.1...v0.18.2)

---
updated-dependencies:
- dependency-name: AngleSharp.Diffing
  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/bunit.web/bunit.web.csproj

@@ -16,7 +16,7 @@
 
  <ItemGroup>
  <PackageReference Include="AngleSharp" Version="0.17.1" />
- <PackageReference Include="AngleSharp.Diffing" Version="0.18.1" />
+ <PackageReference Include="AngleSharp.Diffing" Version="0.18.2" />
  </ItemGroup>
 
  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.1'">