[FIX] mrp : prevent traceback while operation use in bom

When Operation is 'Archive' and it is still in use as 'Consumed in Operation' in
bom while creating Manufacturing Order and confirming it, KeyError will be
generated.

Steps to Produce:-

1) Create a new product, create bom for that product, add components, and
   create or add at least 2 operations to the BoM.
2) In the components of 'Consumed in Operation' add the newly created operation.
3) Now, Archive one operation.
4) Create new Manufacturing Order with a newly created BOM
5) Try to confirm it.

KeyError will be generated.

By applying this commit, if there are no operations left after archiving
one linked to the component then the server error won't occur

sentry - 4042593205

closes odoo/odoo#119098

X-original-commit: ba2364f9188ff44c68a1b86d5029884815a33216
Signed-off-by: Tiffany Chang <tic@odoo.com>

addons/mrp/models/mrp_routing.py

@@ -105,6 +105,12 @@ class MrpRoutingWorkcenter(models.Model):
         if not self._check_m2m_recursion('blocked_by_operation_ids'):
             raise ValidationError(_("You cannot create cyclic dependency."))
 
+    def action_archive(self):
+        res = super().action_archive()
+        bom_lines = self.env['mrp.bom.line'].search([('operation_id', 'in', self.ids)])
+        bom_lines.write({'operation_id': False})
+        return res
+
     def copy_to_bom(self):
         if 'bom_id' in self.env.context:
             bom_id = self.env.context.get('bom_id')