Update AGP and kotlin to fix #58

[giangpham96]

What's done

AGP: 7.0.3 -> 7.3.0 Kotlin: 1.5.31 -> 1.7.20

Motivation

When consumers of ticktock-android upgrade AGP to 7.3.0, there are some issues (described in #58 ) After playing around, updating AGP and Kotlin in this repo solves the problem. A working example is in branch. To be honest, I don't know what caused the original issue. Any input is welcome