Update jackson-module-scala to 2.21.0 (#984)

Co-authored-by: zio-scala-steward[bot] <145262613+zio-scala-steward[bot]@users.noreply.github.com>
Co-authored-by: Jules Ivanic <jules.ivanic@gmail.com>

Author: zio-scala-steward[bot]

project/BuildHelper.scala

@@ -43,7 +43,7 @@ object BuildHelper {
   val zioConstraintlessVersion     = "0.3.3"
   val scalaCollectionCompatVersion = "2.14.0"
   val msgpackVersion               = "0.9.11"
-  val jacksonScalaVersion          = "2.20.2"
+  val jacksonScalaVersion          = "2.21.0"
   val thriftVersion                = "0.22.0"
   val javaxAnnotationApiVersion    = "3.0.0"
   val scalaJavaTimeVersion         = "2.6.0"