Update sbt-assembly to 2.3.1

Author: plokhotnyuk

project/plugins.sbt

@@ -14,7 +14,7 @@ addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.4")
 addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.3.14")
 addSbtPlugin("com.evolution" % "sbt-artifactory-plugin" % "0.0.2")
 addSbtPlugin("com.github.sbt" % "sbt-git" % "2.1.0")
-addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.3.0")
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "2.3.1")
 
 libraryDependencies ++= Seq(
   "org.openjdk.jmh" % "jmh-core" % "1.37",