[2.10.x] scala-compiler 2.12.21 (was 2.12.20)

Author: mkurz

project/Dependencies.scala

@@ -1,5 +1,5 @@
 object Dependencies {
-  val Scala212 = "2.12.20"
+  val Scala212 = "2.12.21"
   val Scala213 = "2.13.16"
   val Scala3   = "3.3.3"
 }