chore: Degrade Scala 3 version to LTS version (3.3.4)

Author: lqhuang

build.mill

@@ -11,7 +11,7 @@ import de.tobiasroeser.mill.vcs.version.VcsVersion
 import com.github.lolgab.mill.mima._
 
 val dottyVersion = sys.props.get("dottyVersion")
-val scalaVersions = List("2.12.20", "2.13.15", "3.6.2") ++ dottyVersion
+val scalaVersions = List("2.12.20", "2.13.15", "3.3.4") ++ dottyVersion
 
 def format = mill.scalalib.scalafmt.ScalafmtModule