upgrade scala

Author: pjfanning

build.sbt

@@ -6,9 +6,9 @@ name := "jackson-module-scala"
 
 organization := "com.fasterxml.jackson.module"
 
-scalaVersion := "2.13.5"
+scalaVersion := "2.13.6"
 
-crossScalaVersions := Seq("2.11.12", "2.12.13", "2.13.5", "3.0.0")
+crossScalaVersions := Seq("2.11.12", "2.12.13", "2.13.6", "3.0.0")
 
 resolvers += Resolver.sonatypeRepo("snapshots")