chore(deps): bump Umbraco.Cms from 10.4.0 to 10.8.5

Bumps [Umbraco.Cms](https://github.com/umbraco/Umbraco-CMS) from 10.4.0 to 10.8.5.
- [Release notes](https://github.com/umbraco/Umbraco-CMS/releases)
- [Commits](umbraco/Umbraco-CMS@release-10.4.0...release-10.8.5)

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

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

Author: dependabot[bot]

src/TestSite.10/TestSite.10.csproj

@@ -7,7 +7,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="Umbraco.Cms" Version="10.4.0"/>
+		<PackageReference Include="Umbraco.Cms" Version="10.8.5"/>
 		<PackageReference Include="uSync" Version="10.7.3"/>
 	</ItemGroup>