Update cats-core to 2.12.0 (#270)

Co-authored-by: dwolla-oss-scala-steward[bot] <212073+dwolla-oss-scala-steward[bot]@users.noreply.github.com>

Author: dwolla-oss-scala-steward[bot]

project/Dependencies.scala

@@ -5,7 +5,7 @@ object Dependencies {
   val specs2Scalacheck = "org.specs2" %% "specs2-scalacheck" % specs2Core.revision
   val specs2Cats = "org.specs2" %% "specs2-cats" % specs2Core.revision
   val specs2CatsEffect = "org.typelevel" %% "cats-effect-testing-specs2" % "1.5.0"
-  val catsCore = "org.typelevel" %% "cats-core" % "2.11.0"
+  val catsCore = "org.typelevel" %% "cats-core" % "2.12.0"
   val catsLaws = "org.typelevel" %% "cats-core" % catsCore.revision
   val catsEffect = "org.typelevel" %% "cats-effect" % "3.5.4"
   val catsEffectLaws = "org.typelevel" %% "cats-effect-laws" % catsEffect.revision