Bump case-app to 2.1.0 (#3830)

Author: Gedochao

project/deps/package.mill.scala

@@ -155,7 +155,7 @@ object Deps {
     .exclude(("com.github.plokhotnyuk.jsoniter-scala", "jsoniter-scala-core_2.13"))
   def bloopRifle       = ivy"ch.epfl.scala:bloop-rifle_2.13:${Versions.bloop}"
   def bsp4j            = ivy"ch.epfl.scala:bsp4j:2.1.1"
-  def caseApp          = ivy"com.github.alexarchambault::case-app:2.1.0-M30"
+  def caseApp          = ivy"com.github.alexarchambault::case-app:2.1.0"
   def collectionCompat = ivy"org.scala-lang.modules::scala-collection-compat:2.13.0"
   // Force using of 2.13 - is there a better way?
   def coursier    = ivy"io.get-coursier:coursier_2.13:${Versions.coursier}"