Scala 3.8.1 support

[fwbrasil]

I've updated Kyo to use Scala 3.8.1 and sbt-mdoc to 2.8.2. It seems mdoc has a dependency on scala-reflect that isn't available in the new Scala version:

[success] Total time: 0 s, completed Jan 24, 2026, 6:32:15 PM
[info] Updating readme_3
[info] Resolved readme_3 dependencies
[warn]
[warn] 	Note: Unresolved dependencies path:
[error] stack trace is suppressed; run last readme / update for the full output
[error] (readme / update) sbt.librarymanagement.ResolveException: Error downloading org.scala-lang:scala-reflect:3.8.1
[error]   Not found
[error]   Not found
[error]   not found: /Users/fwbrasil/.ivy2/local/org.scala-lang/scala-reflect/3.8.1/ivys/ivy.xml
[error]   not found: https://repo1.maven.org/maven2/org/scala-lang/scala-reflect/3.8.1/scala-reflect-3.8.1.pom
[error]   not found: https://central.sonatype.com/repository/maven-snapshots/org/scala-lang/scala-reflect/3.8.1/scala-reflect-3.8.1.pom
[error]   not found: https://central.sonatype.com/repository/staging/org/scala-lang/scala-reflect/3.8.1/scala-reflect-3.8.1.pom
[error]   not found: https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-reflect/3.8.1/ivys/ivy.xml
[error]   not found: https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-reflect/3.8.1/ivys/ivy.xml
[error] Total time: 10 s, completed Jan 24, 2026, 6:32:25 PM

[tgodzik]

Looks like it might be sbt/sbt#8533 Not sure if something we can do on mdoc side

[tgodzik]

sbt 1.12.1 should have the fix, you can check it out