Add lambda configurable languageSettings function in KotlinSourceSet

Function with Groovy Closure is already exists, it provides DSL parity
#KT-44834 Fixed

libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinSourceSet.kt

@@ -16,6 +16,7 @@ interface KotlinSourceSet : Named, HasKotlinDependencies {
     val resources: SourceDirectorySet
 
     val languageSettings: LanguageSettingsBuilder
+    fun languageSettings(configure: LanguageSettingsBuilder.() -> Unit): LanguageSettingsBuilder
     fun languageSettings(configureClosure: Closure<Any?>): LanguageSettingsBuilder
 
     fun dependsOn(other: KotlinSourceSet)