Move project to os-autoinst

[grisu48]

Remove the last remaining links to github.com/grisu48 and move the project fully over to github.com/os-autoinst. This includes migrating the grisu48/gopenqa dependency to os-autoinst/gopenqa.

Related items:

• https://github.com/os-autoinst/gopenqa/releases/tag/v1.0.0
• https://github.com/os-autoinst/gopenqa/pull/42