Revert "Go back to sbt 0.13.5 until 0.13.9 is published on type safe artifactory"
Revert "Go back to sbt 0.13.5 until 0.13.9 is published on type safe artifactory"

This reverts commit 2f41c73ee86a56b190758baaf5999ed85d2f57a1.

som-snytt/dotty,lampepfl/dotty,dotty-staging/dotty,dotty-staging/dotty,lampepfl/dotty,dotty-staging/dotty,reactormonk/dotty,lampepfl/dotty,sjrd/dotty,som-snytt/dotty,som-snytt/dotty,lampepfl/dotty,lampepfl/dotty,dotty-staging/dotty,som-snytt/dotty,densh/dotty,reactormonk/dotty,sjrd/dotty,sjrd/dotty,sjrd/dotty,sjrd/dotty,dotty-staging/dotty,som-snytt/dotty,densh/dotty