Bump akka-http to version 10.0.10. (#2726)

tests/build.gradle

@@ -51,7 +51,7 @@ dependencies {
     compile 'com.google.code.gson:gson:2.3.1'
     compile 'org.scalamock:scalamock-scalatest-support_2.11:3.4.2'
     compile 'com.typesafe.akka:akka-testkit_2.11:2.4.16'
-    compile 'com.typesafe.akka:akka-http-testkit_2.11:10.0.9'
+    compile 'com.typesafe.akka:akka-http-testkit_2.11:10.0.10'
     compile 'com.github.java-json-tools:json-schema-validator:2.2.8';
 
     compile project(':common:scala')