Upgrade ejabberd base image (tracking issue)

[stephdl]

Why

This issue tracks the upgrade of the ejabberd/ecs base Docker image for NethServer/ns8-ejabberd, ensuring updated dependencies for security, compatibility, and maintainability. The upgrade is already merged and provides details for further follow-up.

Purpose

Keep ns8-ejabberd up-to-date by tracking upgrades to the base container image.

Proposed upgrades

• ejabberd/ecs Docker image: chore(deps): update ejabberd/ecs docker tag to v25.10

Each referenced PR contains implementation details and vulnerability analysis where applicable.

Alternative solutions

• Wait to upgrade if major breaking changes or stability concerns arise.
• Apply only critical security patches when stability is prioritized.

Additional context

• Upgrade PR is merged and CI-tested.
• Follow up integration tests as needed for ns8-ejabberd releases.
• See referenced PR for changelog and upstream documentation.

[stephdl]

qa

target is 1.1.2-dev.1

test the upgrade of ejabberd
test a client like webtop can use ejabberd (check webtop documentation)
test you can send and receive message

[Neustradamus]

@stephdl: Thanks a lot for ejabberd 25.10!

Can you add possible ejabberd features in main code?

Thanks in advance.

[mrmarkuz]

Test case "Upgrade" verified