Update scala-library to 2.13.18 (#164)

Co-authored-by: horothesun-scala-steward[bot] <132169906+horothesun-scala-steward[bot]@users.noreply.github.com>

Author: horothesun-scala-steward[bot]

build.sbt

@@ -4,7 +4,7 @@ scalacOptions += "-Xfatal-warnings"
 
 ThisBuild / organization     := "com.horothesun"
 ThisBuild / organizationName := "horothesun"
-ThisBuild / scalaVersion     := "2.13.17"
+ThisBuild / scalaVersion     := "2.13.18"
 
 val projectName = "demo-api-gateway-lambda"