Fix ultra-long invalid Scala version errors

[Gedochao]

Fixes #2722

The errors should get down to reasonable lengths from now on.

scala-cli -S 2.13.13-bin-ffc0292
# [error]  Cannot find a valid matching Scala version for 2.13.13-bin-ffc0292.
# You can only choose one of the 3.x, 2.13.x, and 2.12.x. versions.
# The latest supported stable versions are 2.12.18, 2.13.12, 3.3.1.
# In addition, you can request compilation with the last nightly versions of Scala,
# by passing the 2.nightly, 2.12.nightly, 2.13.nightly, or 3.nightly arguments.
# Specific Scala 2 or Scala 3 nightly versions are also accepted.
# You can also request the latest Scala 3 LTS by passing lts or 3.lts.