Update sourcecode to 0.1.6

Author: scala-steward

Expressions/build.sbt

@@ -2,7 +2,7 @@ libraryDependencies += "com.thoughtworks.feature" %% "implicitapply" % "2.3.0-M8
 
 libraryDependencies += "com.thoughtworks.feature" %% "factory" % "2.3.0-M8"
 
-libraryDependencies += "com.lihaoyi" %% "sourcecode" % "0.1.4"
+libraryDependencies += "com.lihaoyi" %% "sourcecode" % "0.1.6"
 
 libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.4" % Test