Change postgres to alpine (or all containers)

[RacerBas]

2024-06-04 22:02:08.821 CEST [30] WARNING: database "authelia" has no actual collation version, but a version was recorded
2024-06-04 22:02:10.662 CEST [31] WARNING: database "vaultwarden" has no actual collation version, but a version was recorded
2024-06-04 22:02:17.438 CEST [43] WARNING: database "freshrss" has no actual collation version, but a version was recorded

seems to have less security risks and is lightweight

https://hub.docker.com/_/postgres/tags

[RacerBas]

might not be possible:
docker-library/postgres#276

[Joery]

postgres - database has no actual collation version, but a version was recorded