Update scala3-compiler_3, ... to 3.3.1-RC6

Author: scala-steward

project/DottySupport.scala

@@ -12,7 +12,7 @@ import sbt.librarymanagement.{
   * Settings to support validation of TastyUnpickler against the release of dotty with the matching TASTy version
   */
 object TastySupport {
-  val supportedTASTyRelease = "3.3.1-RC4" // TASTy version 28.4-1
+  val supportedTASTyRelease = "3.3.1-RC6" // TASTy version 28.4-1
   val scala3Compiler = "org.scala-lang" % "scala3-compiler_3" % supportedTASTyRelease
   val scala3Library = "org.scala-lang" % "scala3-library_3" % supportedTASTyRelease