Update cats-effect to 3.6.3

Author: typelevel-steward[bot]

build.sbt

@@ -40,7 +40,7 @@ lazy val core = crossProject(JVMPlatform)
     name := "catapult",
     libraryDependencies ++= Seq(
       "org.typelevel" %%% "cats-core" % "2.13.0",
-      "org.typelevel" %%% "cats-effect" % "3.6.2",
+      "org.typelevel" %%% "cats-effect" % "3.6.3",
       "co.fs2" %%% "fs2-core" % "3.12.0",
       "com.launchdarkly" % "launchdarkly-java-server-sdk" % "7.10.1",
     ),