Merge pull request #227 from softwaremill/update/cats-core-2.8.0

Update cats-core to 2.8.0

Author: mergify[bot]

build.sbt

@@ -66,7 +66,7 @@ val scalatest = "org.scalatest" %% "scalatest" % "3.2.9"
 val javassist = "org.javassist" % "javassist" % "3.28.0-GA"
 val akkaActor = "com.typesafe.akka" %% "akka-actor" % "2.6.19"
 val javaxInject = "javax.inject" % "javax.inject" % "1"
-val cats = "org.typelevel" %% "cats-core" % "2.6.1"
+val cats = "org.typelevel" %% "cats-core" % "2.8.0"
 val catsEffect = "org.typelevel" %% "cats-effect" % "3.2.9"
 
 lazy val root = project