[QW][4141789] Séquence sur les contacts

# Done by RHT on the 28/08/2024
#  Task : https://www.odoo.com/odoo/project/5686/tasks/4141789
#  Need : Have an unique reference for each new contact
#  Pastebin : https://pastebin.com/bBQKGaeL
for partner in records:
    partner['ref'] = env['ir.sequence'].next_by_code('contact.sequence')