Update kotlin monorepo to v2.2.20 (#83)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

example/android/build.gradle

@@ -1,5 +1,5 @@
 buildscript {
-    ext.kotlin_version = '2.2.10'
+    ext.kotlin_version = '2.2.20'
     repositories {
         google()
         jcenter()