akka-http: bump scala 2.11.8

frameworks/Scala/akka-http/build.sbt

@@ -4,7 +4,7 @@ name := "akka-http-benchmark"
 
 version := "0.0.1-SNAPSHOT"
 
-scalaVersion := "2.11.7"
+scalaVersion := "2.11.8"
 
 resolvers += "Akka Snapshot Repository" at "http://repo.akka.io/snapshots/"