Update scala-library, scala-reflect to 2.13.16 (#149)

Author: scala-steward

project/GeneralSettings.scala

@@ -7,7 +7,7 @@ import sbtassembly.AssemblyPlugin.autoImport.*
 object GeneralSettings {
 
   val scala212 = "2.12.20"
-  val scala213 = "2.13.15"
+  val scala213 = "2.13.16"
   val scala33 = "3.3.4"
 
   val defaultScalaVersion: String = scala213