Update upickle to 4.3.0 (#1381)

Author: scala-steward

project/Dependencies.scala

@@ -19,7 +19,7 @@ object Dependencies {
   val atmosphereJSVersion = "3.1.3"
   val atmosphereVersion = "2.7.15"
 
-  val upickleVersion = "4.2.1" // Tests only
+  val upickleVersion = "4.3.0" // Tests only
   val circeVersion = "0.14.14" // Tests only
   val circeDerivationVersion = "0.13.0-M5" // Tests only
   val monixVersion = "3.4.1" // udash-rest only