Add Kotlin Gradle plugins bom

This should help with failed variants selection between different Kotlin
 Gradle plugins versions.

 ^KT-54691 In Progress

libraries/tools/kotlin-assignment/build.gradle.kts

@@ -10,6 +10,7 @@ pill {
 }
 
 dependencies {
+    commonApi(platform(project(":kotlin-gradle-plugins-bom")))
     commonApi(project(":kotlin-gradle-plugin-model"))
 
     commonCompileOnly(project(":compiler"))