Update logback-classic to 1.2.13 in series/1.x

Author: http4s-steward[bot]

build.sbt

@@ -24,7 +24,7 @@ val versions = new {
   val armeria = "1.26.3"
   val fs2 = "3.9.3"
   val http4s = "1.0.0-M40"
-  val logback = "1.2.12"
+  val logback = "1.2.13"
   val micrometer = "1.9.2"
   val munit = "0.7.29"
   val catsEffectMunit = "1.0.7"