Upgrade to planka latest (v2.0.3) vs Postgres 16-alpine

[lhommeleplusclassedumonde]

Hello, i'm facing an issue: ii use Whatsupdock to check updated images on my docker host.

Honestly, i did'nt see the v2.0.3 update was out, so i tried updating from rc without issue.
So i updated my docker-compose to planka latest, and all went fine.

But i also noticed that whatsupdock informed me that a PostGres update was available : 18rc1-trixie
Of course, i just modified my docker-compose to upgrade PostGres, and the compose up failed.

As seen on the documentation to upgrade to V2 from v2 c, at first line:
docker compose exec postgres pg_dump -U postgres planka > planka_backup_$(date +%Y%m%d).sql
failed. I ran it using sudo and got a permission denied.

I was wondering if: the postgres update to 18rc1-trixie was needed ? Or is it ok to keep 16-alpine ?