[Build] Pin api and language level to 1.8 in Kotlin compiler modules used by KGP

This is required to be able to compile KGP and it's dependencies which
set LV to 1.4 when repo will use LV 1.9. This caused by the change how
enums are compiled (KT-48872).

build-common/build.gradle.kts

@@ -1,3 +1,6 @@
+import org.jetbrains.kotlin.gradle.dsl.KotlinVersion as GradleKotlinVersion
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask
+
 description = "Kotlin Build Common"
 
 plugins {
@@ -46,3 +49,10 @@ projectTest(parallel = true)
 projectTest("testJUnit5", jUnitMode = JUnitMode.JUnit5, parallel = true) {
     useJUnitPlatform()
 }
+
+// 1.9 level breaks Kotlin Gradle plugins via changes in enums (KT-48872)
+// We limit api and LV until KGP will stop using Kotlin compiler directly (KT-56574)
+tasks.withType<KotlinCompilationTask<*>>().configureEach {
+    compilerOptions.apiVersion.value(GradleKotlinVersion.KOTLIN_1_8).finalizeValueOnRead()
+    compilerOptions.languageVersion.value(GradleKotlinVersion.KOTLIN_1_8).finalizeValueOnRead()
+}