Do not update templates with deploys

CHANGELOG:

### Changed
- [#858](https://gitlab.com/coopdevs/odoo-somconnexio/-/merge_requests/858) Do not update mailing templates with each deploy

Related card: https://trello.com/c/eVGqBAv6/1368-el-correu-denviament-de-la-plantilla-de-s%C3%B2cia-padrina-que-es-dona-de-baixa-torna-a-estar-equivocat

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