Merge pull request #127 from scala-steward/update/commons-lang3-3.8.1

Update commons-lang3 to 3.8.1

Author: SethTisue

build.sbt

@@ -50,7 +50,7 @@ lazy val root = (project in file(".")).
 
     libraryDependencies += "junit" % "junit" % "4.12" % "test",
 
-    libraryDependencies += "org.apache.commons" % "commons-lang3" % "3.4" % "test",
+    libraryDependencies += "org.apache.commons" % "commons-lang3" % "3.8.1" % "test",
 
     libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % "test",