QoL pull request

[Drsheppard01]

• update checkout action in github actions
• update license date
• update some links

Nothing else

[TheAssassin]

I suppose this was closed prematurely?

[Drsheppard01]

Now it was switched to poetry and need to check twice why it can't build, but i open it after checking

[TheAssassin]

Yeah, sorry about the unexpected changes, but I had to modernize the deployment a bit and while I was at it, I also modernized the dependency management. You could open a new issue to describe your problems.