Deploy the upgrader contract

Use the admin's address for the authentified upgrader:

./octez-client originate contract upgrader-weeklynet transferring 0 from $ADMIN running upgrader.tz --init 'Pair "tz1UdMeeXHKq6cQxkse9RJ1Yi8CXuD2gXQRu" None' --burn-cap X.YZ

NB: During the rest of the document we'll consider that $UPGRADER=KT1WTj9XjrSwAEFwAYYVf7HwaNKpZyxUnSEs is the upgrader contract's address.