Clean up license-classifications.yml according to guidelines from license classifications workshop. Also turn on a tight check of the licenses when doing PRs.
I think it makes sense to handle the licenses detected by the check in this PR, and remove the remaining, old LicenseRefs in a separate PR to not make this too big.
Clean up
license-classifications.yml
according to guidelines from license classifications workshop. Also turn on a tight check of the licenses when doing PRs.