Re: Re-bootstrapping sbt and modern Scala; the Scala 3 path is now open

Follow-up of the previous email:

Thanks for the scala-asm upload, Emmanuel!

Next steps that I see:
- scala -> 2.12.21:
  https://salsa.debian.org/java-team/scala/-/merge_requests/2

- New PLM MR ready, carrying your PR as a DEP-3 backport (Author: you):
  https://salsa.debian.org/java-team/plm/-/merge_requests/4

  We had to update the debian packaging, we needed to explicitly add scala-=
asm.=20

- minor, for your PR: checkScala() only accepts "version 2.12" (no 2.13 yet=
).