Bump Scala 3 Next RC to 3.6.2-RC3 (#3334)

Author: Gedochao

project/deps.sc

@@ -11,7 +11,7 @@ object Scala {
   def scala3NextPrefix = "3.5"
   def scala3Next       = s"$scala3NextPrefix.2" // the newest/next version of Scala
   def scala3NextAnnounced = scala3Next  // the newest/next version of Scala that's been announced
-  def scala3NextRc        = "3.6.2-RC2" // the latest RC version of Scala Next
+  def scala3NextRc        = "3.6.2-RC3" // the latest RC version of Scala Next
 
   // The Scala version used to build the CLI itself.
   def defaultInternal = sys.props.get("scala.version.internal").getOrElse(scala3Lts)