[FIX] crm_iap_lead_enrich: small typos

-changed '0' to 0 as probability is an int
-typo that could have caused issues between data of iap  et lead (city <-> city and postal_code <-> zip)

closes odoo/odoo#37004

Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>