Merge pull request #319 from scala-steward/update/json4s-ext-3.6.6

Update json4s-ext, json4s-jackson to 3.6.6

Author: zarthross

project/Dependencies.scala

@@ -11,7 +11,7 @@ object Dependencies {
   lazy val http4sJetty         = "org.http4s"                 %% "http4s-servlet"        % http4sVersion
   lazy val http4sJson4sJackson = "org.http4s"                 %% "http4s-json4s-jackson" % http4sVersion
   lazy val http4sXmlInstances  = "org.http4s"                 %% "http4s-scala-xml"      % http4sVersion
-  lazy val json4s              = "org.json4s"                 %% "json4s-ext"            % "3.6.5"
+  lazy val json4s              = "org.json4s"                 %% "json4s-ext"            % "3.6.6"
   lazy val json4sJackson       = "org.json4s"                 %% "json4s-jackson"        % json4s.revision
   lazy val swaggerModels       = "io.swagger"                  % "swagger-models"        % "1.5.22"
   lazy val swaggerCore         = "io.swagger"                  % "swagger-core"          % swaggerModels.revision