Update zio, zio-streams to 2.1.5 (#3053)

Co-authored-by: zio-scala-steward[bot] <145262613+zio-scala-steward[bot]@users.noreply.github.com>

Author: zio-scala-steward[bot]

project/Dependencies.scala

@@ -2,7 +2,7 @@ import sbt.*
 import sbt.Keys.*
 
 object Version {
-  val zio = "2.1.4"
+  val zio = "2.1.5"
 }
 
 sealed trait ExcludeTests