WoWDatabaseEditor - Build Bug

**Describe the bug**
Details
Error (active) MSB4062 The "ProduceDirectoryListingTask" task could not be loaded from the assembly F:\source\WoWDatabaseEditor\WebBuildTasks\\bin\Debug\net8.0\WebBuildTasks.dll. Could not find type 'System.Runtime.CompilerServices.NullableContextAttribute' in assembly 'C:\Windows\Microsoft.NET\Framework64\v4.0.30319\System.Runtime.dll'. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. LoaderAvalonia.Web F:\source\WoWDatabaseEditor\LoaderAvalonia.Web F:\source\WoWDatabaseEditor\LoaderAvalonia.Web\LoaderAvalonia.Web.csproj 106
The whole building process : [Link](https://gist.github.com/shamage/d254d2ac33d7438fc4d4a729c326c69d)

**Version (commit hash)**

2b04642

If you have built the binary yourself, check commit hash with `git rev-parse HEAD`

**To Reproduce**
Steps to reproduce the behavior:
*****

**Expected behavior**
The build should finish without error

**Screenshots**


Start by checking LoaderAvalonia.Web/LoaderAvalonia.Web.csproj at line 106 and the UsingTask declaration for ProduceDirectoryListingTask. Reproduce the build at commit 2b04642 using the linked build log, then verify that the build completes without the MSB4062 assembly-loading error.

Written by the indexing model from the issue text.