Merge pull request #607 from typelevel/update/series/1.x/cats-effect-3.5.6

Update cats-effect, cats-effect-testkit to 3.5.6 in series/1.x

Author: sh0hei

build.sbt

@@ -27,7 +27,7 @@ ThisBuild / tlVersionIntroduced := Map("3" -> "1.1.1")
 ThisBuild / tlCiReleaseBranches := Seq("series/1.x")
 ThisBuild / tlSonatypeUseLegacyHost := false
 
-val CatsEffectVersion = "3.5.5"
+val CatsEffectVersion = "3.5.6"
 val ScalaTestVersion = "3.2.18"
 
 lazy val root = tlCrossRootProject