Update jsoniter-scala-core, ... to 2.7.3 (#273)

Author: scala-steward

build.sbt

@@ -191,7 +191,7 @@ lazy val dependency =
       val avro4s                        = "4.0.8"
       val circe                         = "0.13.0"
       val json4s                        = "3.6.11"
-      val jsoniterScala                 = "2.7.1"
+      val jsoniterScala                 = "2.7.3"
       val scalaTest                     = "3.2.8"
       val kafka                         = "2.8.0"
       val play                          = "2.9.2"