Replace future with 3.5

This reverts commit 48e0340.

Author: Kordyjan

compiler/src/dotty/tools/dotc/config/MigrationVersion.scala

@@ -33,7 +33,7 @@ object MigrationVersion:
 
   val AscriptionAfterPattern = MigrationVersion(`3.3`, future)
 
-  val ExplicitContextBoundArgument = MigrationVersion(`3.4`, future)
+  val ExplicitContextBoundArgument = MigrationVersion(`3.4`, `3.5`)
 
   val AlphanumericInfix = MigrationVersion(`3.4`, future)
   val RemoveThisQualifier = MigrationVersion(`3.4`, future)