Update gradle.kotlin.dsl to v6

Author: renovate[bot]

versions-root/libs.versions.toml

@@ -32,7 +32,7 @@ shadow-jar = "9.0.0-beta12"
 atomicfu = "0.27.0"
 serialization = "1.8.1"
 detekt-gradle-plugin = "1.23.8"
-gradle-kotlin-dsl = "5.1.2"
+gradle-kotlin-dsl = "6.1.2"
 binary-compatibility-validator = "0.17.0"
 kover = "0.9.1"