chore(test deps): update testing dependencies to 8.0.28

Author: renovate[bot]

tests/Zitadel.Test/Zitadel.Test.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.26" />
+        <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.28" />
         <PackageReference Include="Moq" Version="4.20.72" />
         <PackageReference Update="FluentAssertions" Version="6.12.2" />
         <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.14.1" />