fix(docs): use legacy buildscript to resolve dokka plugin in ci

build.gradle.kts

@@ -1,9 +1,19 @@
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath("org.jetbrains.kotlin:dokka-gradle-plugin:1.9.20")
+    }
+}
+
 plugins {
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.kotlin.jvm) apply false
-    alias(libs.plugins.dokka) apply false
 }
 
+apply(plugin = "org.jetbrains.kotlin.dokka")
+
 // Global Dokka configuration for Wiki
 subprojects {
     plugins.withType<org.jetbrains.kotlin.dokka.gradle.DokkaPlugin> {