[Synapse] Instant messaging server matrix network

I cannot install this app (december 2025).

https://paste.yunohost.org/raw/ohusefokut

2025-12-23 09:54:38,665: WARNING -     raise RuntimeError("Synapse requires PostgreSQL 14 or above.")
2025-12-23 09:54:38,665: WARNING - RuntimeError: Synapse requires PostgreSQL 14 or above.
2025-12-23 09:54:39,258: ERROR - Unable to install synapse: An error occurred inside the app installation script

I have no pending updates for my instance. I did find that same have had a similar issue with Matrix related app: https://github.com/element-hq/synapse/issues/18086 

I am hesitant to try the work around given there because I do not want to break my server in the process for future yunohost updates. Is there a specific workaround I need to do on my set-up?