Bump HtmlAgilityPack from 1.11.67 to 1.11.70

Bumps [HtmlAgilityPack](https://github.com/zzzprojects/html-agility-pack) from 1.11.67 to 1.11.70.
- [Release notes](https://github.com/zzzprojects/html-agility-pack/releases)
- [Commits](https://github.com/zzzprojects/html-agility-pack/commits/v1.11.70)

---
updated-dependencies:
- dependency-name: HtmlAgilityPack
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

src/Html2Markdown/Html2Markdown.csproj

@@ -15,7 +15,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="HtmlAgilityPack" Version="1.11.67" />
+    <PackageReference Include="HtmlAgilityPack" Version="1.11.70" />
     <PackageReference Include="JetBrains.Annotations" Version="2024.2.0" />
   </ItemGroup>