Web eID .NET authentication token validation library version 1.2.0 will be the last version that supports .NET 6 since extended support for .NET 6 (LTS) ends on 12 November 2024.
More information about .NET 6 EOL is available from here - https://azure.microsoft.com/en-us/updates/dotnet6support/