Update http4s-circe, http4s-client, ... to 0.23.15

Author: 47erbot

project/ProjectPlugin.scala

@@ -18,7 +18,7 @@ object ProjectPlugin extends AutoPlugin {
       val cats: String              = "2.8.0"
       val circe: String             = "0.14.2"
       val expecty                   = "0.15.4"
-      val http4s: String            = "0.23.13"
+      val http4s: String            = "0.23.15"
       val http4sBlazeClient: String = "0.23.12"
       val paradise: String          = "2.1.1"
       val scalacheck                = "1.16.0"