Update scala-library to 2.13.15

Author: scala-steward-bot

build.sbt

@@ -3,7 +3,7 @@ import sbtrelease.ReleaseStateTransformations._
 import sbtcrossproject.CrossPlugin.autoImport.crossProject
 
 val Scala212 = "2.12.20"
-val Scala213 = "2.13.14"
+val Scala213 = "2.13.15"
 val Scala3 = "3.3.3"
 val scalatestVersion = "3.2.19"