dotnet paket convert-from-nuget doesn't respect target framework version when creating paket.lock

Description

Please provide a succinct description of your issue.

Repro steps

Fastest way to reproduce

1. In vs-code install Dev Containers
2. Create the following folders hierarchy
   bugfix-issue-id/.devcontainer/
3. Create the following two files in the .devcontainer folder
   • bolero.Dockerfile
   • devcontainer.json
4. Content for the bolero.Dockerfile

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS dev-env
WORKDIR /src
RUN dotnet new -i Bolero.Templates

5. Content for the devcontainer.json

{
    "name": "tahh-bolero",
    "dockerFile": "bolero.Dockerfile",
    "customizations": {
        "vscode": {
            "extensions": [
                "Ionide.Ionide-fsharp",
                "ms-dotnettools.dotnet-interactive-vscode"
            ]
        }
    }
}

6. Run the dev container
7. In the terminal scaffold a blazor project: $ dotnet new blazorwasm -o src/Frontend
8. Test the project will build and function: $ run --project src/Frontend/Frontend.csproj
9. Prepare for converting to paket
10. $ dotnet new tool-manifest
11. $ dotnet tool install paket
12. $ dotnet paket convert-from-nuget

Expected behavior

Perfect build and compiling code

Actual behavior

The code will no longer build

/workspaces/blazorFakePaketZero/src/Frontend/Frontend.csproj : error NU1202: Package Microsoft.JSInterop.WebAssembly 7.0.1 is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Package Microsoft.JSInterop.WebAssembly 7.0.1 supports: net7.0 (.NETCoreApp,Version=v7.0)
/workspaces/blazorFakePaketZero/src/Frontend/Frontend.csproj : error NU1202: Package Microsoft.AspNetCore.Components.Web 7.0.1 is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Package Microsoft.AspNetCore.Components.Web 7.0.1 supports: net7.0 (.NETCoreApp,Version=v7.0)
/workspaces/blazorFakePaketZero/src/Frontend/Frontend.csproj : error NU1202: Package Microsoft.JSInterop.WebAssembly 7.0.1 is not compatible with net6.0 (.NETCoreApp,Version=v6.0) / browser-wasm. Package Microsoft.JSInterop.WebAssembly 7.0.1 supports: net7.0 (.NETCoreApp,Version=v7.0)
/workspaces/blazorFakePaketZero/src/Frontend/Frontend.csproj : error NU1202: Package Microsoft.AspNetCore.Components.Web 7.0.1 is not compatible with net6.0 (.NETCoreApp,Version=v6.0) / browser-wasm. Package Microsoft.AspNetCore.Components.Web 7.0.1 supports: net7.0 (.NETCoreApp,Version=v7.0)

Known workarounds

I know none
bugfix-issue-id.zip

Start with the dotnet paket convert-from-nuget entry point and inspect how it creates paket.lock from the Frontend.csproj. Reproduce with the provided .NET 6 Blazor project, then verify that the generated lock file respects net6.0 and the project builds without NU1202 errors.