Bump preferred Kotlin version to 1.9.0

Author: gesellix

build.gradle.kts

@@ -34,8 +34,8 @@ dependencies {
     ).onEach {
       implementation(it) {
         version {
-          strictly("[1.6,1.9)")
-          prefer("1.8.22")
+          strictly("[1.6,1.10)")
+          prefer("1.9.0")
         }
       }
     }