Update scala-library to 2.13.15

Author: scala-steward

build.sbt

@@ -2,11 +2,11 @@ name := "scala-retry"
 
 organization := "com.github.hipjim"
 
-crossScalaVersions := Seq("2.10.6", "2.11.10", "2.12.15","2.13.14", "3.0.2")
+crossScalaVersions := Seq("2.10.6", "2.11.10", "2.12.15","2.13.15", "3.0.2")
 
 version := "0.5.0-SNAPSHOT"
 
-scalaVersion := "2.13.14"
+scalaVersion := "2.13.15"
 
 scalacOptions ++= Seq(
   // warnings