Update cats-effect to 2.1.1 (#342)

Author: scala-steward

project/ProjectPlugin.scala

@@ -23,7 +23,7 @@ object ProjectPlugin extends AutoPlugin {
     lazy val V = new {
       val base64: String     = "0.2.9"
       val cats: String       = "2.1.1"
-      val catsEffect: String = "2.0.0"
+      val catsEffect: String = "2.1.1"
       val circe: String      = "0.13.0"
       val paradise: String   = "2.1.1"
       val simulacrum: String = "0.19.0"