Upgrade AGP to 9.0.0

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

build.gradle.kts

@@ -5,9 +5,15 @@
  * SPDX-License-Identifier: GPL-3.0-or-later
  */
 
+buildscript {
+    dependencies {
+        // https://developer.android.com/build/releases/agp-9-0-0-release-notes#runtime-dependency-on-kotlin-gradle-plugin-upgrade
+        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${libs.versions.kotlin.get()}")
+    }
+}
+
 plugins {
     alias(libs.plugins.android.application) apply false
-    alias(libs.plugins.jetbrains.kotlin.android) apply false
     alias(libs.plugins.jetbrains.kotlin.compose) apply false
     alias(libs.plugins.jetbrains.kotlin.parcelize) apply false
     alias(libs.plugins.jetbrains.kotlin.serialization) apply false