This makes use of the refactoring of Android SDK done in:
https://github.com/NixOS/nixpkgs/pull/89775
Which allows us to drop the use of our own fork of `nixpkgs`.
Android Upgrades:
* Build Tools - `29.0.2` to `30.0.3`
* Platform Tools - `29.0.6` to `30.0.5`
* NDK Bundle - `21.0.6113669` to `21.3.6528147`
Other Upgrades:
* Git - `2.28.0` to `2.29.2`
* Go - `1.14.7` to `1.14.13`
* Clojure - `1.10.1.645` to `1.10.1.763`
* NodeJS - `12.18.3` to `12.20.1`
* Yarn - `1.22.4` to `1.22.10`
* OpenJDK - `8u265-ga` to `8u272-b10`
* PatchElf - `0.11` to `0.12`
* CoreUtils - `8.31` to `8.32`
Signed-off-by: Jakub Sokołowski <jakub@status.im>