Git clone examples instead of compiling them into epm

## Desc

Elvis currently compiles examples into `epm` for initializing projects as possible as it could be, but it is...stupid in some way.

## Solution

The source code is here:

https://github.com/elvisjs/elvis/blob/d8f2aea23009676e089d8ba3c2f72c4993a45561/crates/epm/build.rs#L10

We can use `git clone` instead of compiling them.