Update sbt-assembly to 1.2.0

Author: adpi2

project/plugins.sbt

@@ -10,4 +10,4 @@ addSbtPlugin("com.lightbend" % "sbt-whitesource" % "0.1.18")
 addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.9.0")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.8.1")
 addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.5.2")
-addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.10")
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "1.2.0")