Update client3:core to 3.10.3 (#223)

Co-authored-by: Scala Steward <[email protected]>

build.sc

@@ -11,7 +11,7 @@ object Versions {
   val zioVersion            = "2.1.14"
   val zioJsonVersion        = "0.7.4"
   val zioConfigVersion      = "4.0.3"
-  val sttpVersion           = "3.10.2"
+  val sttpVersion           = "3.10.3"
   val scalafixModuleVersion = "0.6.0"
 }