Proj0207: Define the project copyright explicitly

To ensure the creation of well-formed NuGet packages, explicitly define the <Copyright> node or disable package generation by defining the <IsPackable> node with value false.

Non-compliant

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <IsPackable>true</IsPackable>
  </PropertyGroup>

</Project>

Compliant

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <IsPackable>true</IsPackable>
    <Copyright>Copyright © Corniel Nobel 2023-current</Copyright>
  </PropertyGroup>

</Project>

Or disable packability:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <IsPackable>false</IsPackable>
  </PropertyGroup>

</Project>