Upgrade kotlin

app/build.gradle

@@ -3,6 +3,7 @@ plugins {
 	id 'kotlin-android'
 	id 'kotlin-android-extensions'
 	id 'kotlin-kapt'
+	// TODO id 'kotlin-parcelize'
 }
 
 def gitCommits = 'git rev-list --count HEAD'.execute([], rootDir).text.trim().toInteger()

build.gradle

@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-	ext.kotlin_version = '1.4.10'
+	ext.kotlin_version = '1.4.20'
 	repositories {
 		google()
 		jcenter()