chore(deps): update kotest to v5.6.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 confluent = "7.3.3"
 kafka = "3.4.0"
 kotlin = "1.8.20"
-kotest = "5.5.5"
+kotest = "5.6.0"
 
 [libraries]
 archunit = { module = "com.tngtech.archunit:archunit-junit5", version = "1.0.1" }