Update logback-classic to 1.5.15 (#1697)

build.sbt

@@ -12,7 +12,7 @@ val V = new {
   val `json-schema`                    = "1.14.4"
   val `jsoniter-scala`                 = "2.32.0"
   val kafka                            = "3.9.0"
-  val logback                          = "1.5.13"
+  val logback                          = "1.5.15"
   val `log-effect`                     = "0.19.2"
   val ocisdk                           = "3.55.1"
   val postgresql                       = "42.7.4"