Replaces `community.docker.docker_image` with the modern
`docker_image_pull` and `docker_image_build` split modules. Drops the
`ansible_version` compatibility ladder and the now-redundant
`_container_image_force_pull` variable (the new pull module handles
registry refresh natively via `pull: always`). Also registers
`_container_image_build_result` so that a self-build rebuild correctly
triggers a service restart.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/5191.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Synapse Admin is Ketesa now!

* i18n changes

* add automatic migration

* fix migration version in vars

* add a note about routing for OIDC Auth

* mention v1.0.0 announcement blog post

* Update docs/container-images.md

Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

* Update CHANGELOG.md

Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

---------

Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>