Remove final

stream/src/main/scala/org/apache/pekko/stream/impl/fusing/Ops.scala

@@ -236,7 +236,7 @@ private[stream] object Collect {
   // Cached function that can be used with PartialFunction.applyOrElse to ensure that A) the guard is only applied once,
   // and the caller can check the returned value with Collect.notApplied to query whether the PF was applied or not.
   // Prior art: https://github.com/scala/scala/blob/v2.11.4/src/library/scala/collection/immutable/List.scala#L458
-  final object NotApplied extends (Any => Any) {
+  object NotApplied extends (Any => Any) {
     final override def apply(v1: Any): Any = this
   }
 }