update 3y old "postgres:11.3" to "postgres:11"

Describe the problem

the repo recommended postgres:11.3 image is 3 years old ( created : 2019-06-10 )

And it does not include the last 3 years of security/bug fix updates.

• debian
• postgres

Steps to reproduce

repo: develop

search: https://gitlab.com/search?search=postgres%3A11.3&nav_source=navbar&project_id=10858056&search_code=true&repository_ref=develop

And the current source code is using postgres:11.3 image, and this is very old.

• Docker hub: Last pushed 3 years ago

command-line verify:

$ docker inspect --format='{{index .RepoDigests 0}} {{.Created}}' postgres:11.3
postgres@sha256:1518027f4aaee49b836c5cf4ece1b4a16bdcd820af873402e19e1cc181c1aff2 2019-06-10T23:51:09.624295446Z

and based on: "Debian GNU/Linux 9.9 (stretch)"

$ docker run -it --rm  postgres:11.3 bash -c "lsb_release -a"
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux 9.9 (stretch)
Release:	9.9
Codename:	stretch

And 'Debian LTS support for Debian 9 "Stretch" ended on June 30, 2022' ( with Debian 9.13 )

Recommendation

just use postgres:11image without minor release.

• this is debian:bullseye-slim based
  • code: https://github.com/docker-library/postgres/blob/master/11/bullseye/Dockerfile
    • PG_VERSION 11.16-1.pgdg110+1

And the current pg11 release is: https://www.postgresql.org/docs/release/11.16/ Release date: 2022-05-12