Use import instead of mixin trait

Author: Michel Davit

cats/src/test/scala/magnolify/cats/PrioritySuite.scala

@@ -17,14 +17,15 @@
 package magnolify.cats
 
 import cats.*
+import magnolify.cats.auto.*
 import magnolify.shims.MurmurHash3Compat
 import magnolify.test.*
 import magnolify.test.Simple.*
 
 import scala.reflect.ClassTag
 import scala.util.hashing.MurmurHash3
 
-class PrioritySuite extends MagnolifySuite with magnolify.cats.AutoDerivation {
+class PrioritySuite extends MagnolifySuite {
 
   private def test[T: ClassTag: Hash: Show]: Unit =
     test(s"Priority.${className[T]}") {

cats/src/test/scala/magnolify/cats/ScopeTest.scala

@@ -26,7 +26,8 @@ import scala.reflect.{classTag, ClassTag}
 object ScopeTest {
   case class Sets(s: Set[Int])
 
-  object Auto extends magnolify.cats.AutoDerivation {
+  object Auto {
+    import magnolify.cats.auto.*
     val s: Show[Numbers] = implicitly
     val eq: Eq[Numbers] = implicitly
     val hash: Hash[Numbers] = implicitly