Modify refresh process to rollback using migration
Modify refresh process to rollback using migration

Previously the rollback process was only "delete all table" statement, using `$forge`.

The problem with this process is the foreign key in Postgre (and maybe other databases system): droping table without the " CASCADE" at the end of DROP TABLE statement throw an error:
```console
pg_query(): Query failed: ERROR:  cannot drop table db_users because other objects depend on it
DETAIL:  constraint db_cities_user_uuid_fkey on table db_cities depends on table table db_users
HINT:  Use DROP ... CASCADE to drop the dependent objects too.
```
Without this modification, the previous error was thrown and I couldn't test my database without refreshing it.

Using the `$this->migrations` process ensure that the user's migration's down request are followed, such mine in this project:
```PHP
public function down()
{
	$this->db->query("
		DROP TABLE IF EXISTS " . $this->db->prefixTable('cities') ." CASCADE"
	);
}
```

Also this process ensures that if the developper have manually created some table for any reason, these tables are not deleted, which was the case with the previous process where all the present tables were deleted without a look in the migrations files.

Hope this helps :)
samsonasik/CodeIgniter4,bcit-ci/CodeIgniter4,lonnieezell/CodeIgniter4,gustavojm/CodeIgniter4,lonnieezell/CodeIgniter4,lonnieezell/CodeIgniter4,samsonasik/CodeIgniter4,samsonasik/CodeIgniter4,natanfelles/CodeIgniter4,lonnieezell/CodeIgniter4,bcit-ci/CodeIgniter4,gustavojm/CodeIgniter4,kenjis/CodeIgniter4,ytetsuro/CodeIgniter4,kenjis/CodeIgniter4,gustavojm/CodeIgniter4,natanfelles/CodeIgniter4,kenjis/CodeIgniter4,bcit-ci/CodeIgniter4,natanfelles/CodeIgniter4,bcit-ci/CodeIgniter4,natanfelles/CodeIgniter4,lonnieezell/CodeIgniter4,ytetsuro/CodeIgniter4,ytetsuro/CodeIgniter4,samsonasik/CodeIgniter4,kenjis/CodeIgniter4,samsonasik/CodeIgniter4,gustavojm/CodeIgniter4,samsonasik/CodeIgniter4,ytetsuro/CodeIgniter4,ytetsuro/CodeIgniter4,lonnieezell/CodeIgniter4,natanfelles/CodeIgniter4,natanfelles/CodeIgniter4,bcit-ci/CodeIgniter4,ytetsuro/CodeIgniter4,kenjis/CodeIgniter4