chore(deps): update dependency io.kotest:kotest-assertions-core to v6.1.6

Author: renovate[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ ktor = "3.4.1"
 kx-io = "0.9.0"
 maven-publish = "0.36.0"
 junit = "4.13.2"
-kotest = "6.1.4"
+kotest = "6.1.6"
 ax-test-runner = "1.7.0"
 ax-test-rules = "1.6.1"
 ax-test-core = "1.7.0"