Update cats-core to 2.12.0 in scala-cli-test

Author: scala-steward-dev

script.scala

@@ -2,7 +2,7 @@
 //> using lib "com.lihaoyi::os-lib:0.9.3"
 
 //> using lib "com.lihaoyi::fansi:0.3.1"
-//> using lib "org.typelevel::cats-core:2.10.0"
+//> using lib "org.typelevel::cats-core:2.12.0"
 //> using lib "io.circe::circe-fs2:0.14.1"
 //> using toolkit typelevel:0.1.29