[DIFE-189] Encrypt data to eTranslation
We need to encrypt the endpoint somehow. We'll encrypt the external-reference
field with a couple of known strings (only known by the application) to make sure the translated text was requested by the application and not anyone trying to attack the system.
This requires https://git.fpfis.eu/future-of-europe/dife-decidim-fluxcd/-/merge_requests/7