[FW][FIX] repair: Fix sequence auto generation

[fw-bot]

Issue: In the upgraded version, we have implemented the condition vals['name'] == _('New'). However, the data type of the 'name' field is character and translate = False. Additionally, the default value for the 'name' field is set to 'New', causing this condition to evaluate to false and consequently terminating the execution of the if block.

Solution: To address this, we propose changing the condition to vals['name'] == 'New'
          to ensure correct comparison. This modification is warranted due to the
          [configuration](https://github.com/odoo/odoo/blob/89fbb75659ba71b8c76dddd62ba331966161f59b/addons/repair/models/repair.py#L31)
          of the field:

          The field is not translatable.
          The field is required and set to readonly true, preventing customers from inputting values.
          The default value for the field is set to 'New'.

Before:
       Unable to obtain the auto-generated sequence (receiving default value 'New').

After:
      The sequence is generated automatically.

OPW-3887638

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Forward-Port-Of: odoo/odoo#165771

[robodoo]

.

[fw-bot]

This PR targets 17.0 and is part of the forward-port chain. Further PRs will be created up to master.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port