[FIX] base_automation: better name for relation of m2m
[FIX] base_automation: better name for relation of m2m

Oversight of 92cf2474a2b6cbe13bb0d9f92f21a6f6b9c98a18

closes odoo/odoo#45328

X-original-commit: e4130099cca04ea0d98d9cab3a234e7d30530e44
Signed-off-by: Christophe Simonis <0e117f2b429bfa19751522a564765b352cb7b946@odoo.com>

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo