Migrate from .NET 6 to .NET 8

[Alfagun74]

• [ ] Migrate Codebase to .Net 8
• [ ] Change Pipelines to "8.x", example: https://github.com/Phalcode/crackpipe-app/blob/3e8443b830df7c7329742f22c9c8c96e0fc0e2cb/.github/workflows/deployment-master.yaml#L19

[Yelo420]

will be checked in any case, but do not need an issue at the moment

[Alfagun74]