Improve deploy script to manage owners

[bal7hazar]

In the current situation all deployed contracts are owned by the admin address, therefore we have to manually transfer the ownership of the nft contract from admin to minter contract.

Using starknet invoke we should be able to handle thise automatically after deployments.

[bal7hazar]

protostar cannot invoke transferOwnershop yet (protostar#606).

Based on this, we have the following choices:

• Do nothing and wait for protostar update
• Use starknet invoke until next protostar update