Merge pull request #707 from scala-steward/update/scala3-library-3.9.0

scala3-library 3.9.0 (was 3.3.8)

Author: mkurz

build.sbt

@@ -3,7 +3,7 @@ version := "1.0-SNAPSHOT"
 
 enablePlugins(PlayScala)
 
-scalaVersion := "3.3.8"
+scalaVersion := "3.9.0"
 scalacOptions ++= List("-encoding", "utf8", "-deprecation", "-feature", "-unchecked")
 
 libraryDependencies ++= Seq(