Update pekko-stream to 1.3.0 (#454)

Author: scala-steward

project/Dependencies.scala

@@ -8,7 +8,7 @@ object Dependencies {
   val scalaStmVersion    = "0.11.1"
   val bcVersion          = "1.76" // bouncycastle
   val pekkoHttpVersion   = "1.3.0"
-  val pekkoStreamVersion = "1.2.1"
+  val pekkoStreamVersion = "1.3.0"
   // log4j is only needed to test-we-server
   val log4jVersion = "2.21.0"