Set kotlin-project-model as api dependency for kotlin-gradle-plugin-api

LanguageSettingsBuilder depends on LanguageSetting interface from KPM
which forces api dependency scope

^KT-46517 Fixed

libraries/tools/kotlin-gradle-plugin-api/build.gradle.kts

@@ -7,9 +7,9 @@ plugins {
 
 dependencies {
     api(project(":native:kotlin-native-utils"))
+    api(project(":kotlin-project-model"))
 
     compileOnly("com.android.tools.build:gradle:3.4.0")
-    compileOnly(project(":kotlin-project-model"))
 }
 
 pill {