Rendering project fails on .NET 6.0

[gsomix]

Repro steps

1. Create project using Aardvark template.

   $ mkdir TestApp
   $ cd TestApp
   $ dotnet new aardvark.rendering --backend opengl

2. Update Paket to latest in dotnet-tools.json.

   {
   "version": 1,
   "isRoot": true,
   "tools": {
   "paket": {
     "version": "7.0.0-alpha003",
     "commands": [
       "paket"
     ]
   }
   }
   }

3. Update TestApp.fsproj to .NET 6

   <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
   <OutputType>Exe</OutputType>
   <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
   
   <ItemGroup>
   <Compile Include="Program.fs" />
   </ItemGroup>
   
   <Import Project="..\..\.paket\Paket.Restore.targets" />
   </Project>

4. Update Aardvark to latest in paket.dependencies

   
   source https://api.nuget.org/v3/index.json
   framework: net6.0
   storage: none

nuget FSharp.Core >= 5.0.0 lowest_matching: true

nuget Aardvark.Base ~> 5.1.25 nuget Aardvark.Base.Incremental ~> 5.1.25 nuget Aardvark.Base.FSharp ~> 5.1.25

nuget Aardvark.Rendering ~> 5.1.22 nuget Aardvark.SceneGraph ~> 5.1.22 nuget Aardvark.SceneGraph.IO ~> 5.1.22 nuget Aardvark.Application.Slim ~> 5.1.22 nuget Aardvark.Application.Slim.GL ~> 5.1.22

5. Install packages and run application

$ dotnet tool restore $ dotnet paket install $ dotnet run -c Release --project .\src\TestApp\TestApp.fsproj

Full project:
[TestApp.zip](https://github.com/aardvark-platform/aardvark.templates/files/7799489/TestApp.zip)

**Expected behavior**

Application runs.

**Actual behavior**

[UnhandledException.](https://github.com/aardvark-platform/aardvark.templates/files/7799490/UnhandledException.log)

System.PlatformNotSupportedException: Unmanaged indirect call emission is not supported on this platform.

**Known workarounds**

Use .NET 5 instead.

**Related information**

$ dotnet --version 6.0.100