fix(deps): update kotlin monorepo to v2

Author: renovate[bot]

build.gradle

@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.9.22'
+    ext.kotlin_version = '2.1.21'
     repositories {
         google()
         mavenCentral()