Fix StrictOptimizedSortedMapOps type parameter

See scala/scala3#4839

Author: allanrenucci

src/library/scala/collection/StrictOptimizedSortedMapOps.scala

@@ -12,7 +12,7 @@ import scala.annotation.implicitNotFound
   */
 trait StrictOptimizedSortedMapOps[K, +V, +CC[X, Y] <: Map[X, Y] with SortedMapOps[X, Y, CC, _], +C <: SortedMapOps[K, V, CC, C]]
   extends SortedMapOps[K, V, CC, C]
-    with StrictOptimizedMapOps[K, V, Map, C] {
+    with StrictOptimizedMapOps[K, V, CC, C] {
 
   override def map[K2, V2](f: ((K, V)) => (K2, V2))(implicit @implicitNotFound(SortedMapOps.ordMsg) ordering: Ordering[K2]): CC[K2, V2] =
     strictOptimizedMap(sortedMapFactory.newBuilder, f)