Bump HtmlSanitizer from 6.0.453 to 8.0.723 in /Web/AYN.Web.ViewModels

Bumps [HtmlSanitizer](https://github.com/mganss/HtmlSanitizer) from 6.0.453 to 8.0.723.
- [Release notes](https://github.com/mganss/HtmlSanitizer/releases)
- [Commits](mganss/HtmlSanitizer@v6.0.453...v8.0.723)

---
updated-dependencies:
- dependency-name: HtmlSanitizer
  dependency-type: direct:production
...

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

Web/AYN.Web.ViewModels/AYN.Web.ViewModels.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="HtmlSanitizer" Version="6.0.453" />
+    <PackageReference Include="HtmlSanitizer" Version="8.0.723" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.312" PrivateAssets="all">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>