Add router 4G products in catalog

CHANGELOG:

### Added
- [#888](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/888) Add 4G category products in API product catalog

Related card: https://trello.com/c/eebHwkzd/1424-api-productcatalog-must-return-new-product-router-4g

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