Update ProjectPlugin.scala

Author: juanpedromoreno

project/ProjectPlugin.scala

@@ -13,7 +13,7 @@ object ProjectPlugin extends AutoPlugin {
     lazy val V = new {
       val shapeless: String           = "2.3.3"
       val scala: String               = "2.13.2"
-      val scalaExercises: String      = "0.6.0-SNAPSHOT"
+      val scalaExercises: String      = "0.6.0"
       val scalacheck: String          = "1.14.3"
       val scalacheckShapeless: String = "1.2.5"
       val scalatest: String           = "3.1.1"
@@ -40,10 +40,6 @@ object ProjectPlugin extends AutoPlugin {
       organization := "org.scala-exercises",
       organizationName := "47 Degrees",
       organizationHomepage := Some(url("https://47deg.com")),
-      scalaVersion := autoImport.V.scala,
-      resolvers ++= Seq(
-        Resolver.sonatypeRepo("snapshots"),
-        Resolver.sonatypeRepo("releases")
-      )
+      scalaVersion := autoImport.V.scala
     )
 }