[chore] Set reference compiler to 3.7.1-RC2 (#23244)

[test_non_bootstrapped]

cc @hamzaremmal

Author: hamzaremmal

project/Build.scala

@@ -103,7 +103,7 @@ object Build {
    *
    *  Warning: Change of this variable needs to be consulted with `expectedTastyVersion`
    */
-  val referenceVersion = "3.7.1-RC1"
+  val referenceVersion = "3.7.1-RC2"
 
   /** Version of the Scala compiler targeted in the current release cycle
    *  Contains a version without RC/SNAPSHOT/NIGHTLY specific suffixes
@@ -1237,7 +1237,7 @@ object Build {
     dependsOn(dottyCompiler(Bootstrapped) % "provided; compile->runtime; test->test").
     settings(scala2LibraryBootstrappedSettings).
     settings(moduleName := "scala2-library-cc")
-  
+
   lazy val scala2LibraryBootstrappedSettings = Seq(
       javaOptions := (`scala3-compiler-bootstrapped` / javaOptions).value,
       Compile / scalacOptions ++= {