matrix-synapse: switch to modern community.docker docker_image modules

Replaces `community.docker.docker_image` with the modern
`docker_image_pull` and `docker_image_build` split modules across all
four task files (synapse, reverse_proxy_companion, goofys,
rust-synapse-compress-state). Drops the `ansible_version` compatibility
ladder and removes four `_container_image_force_pull` variables (the new
pull module handles registry refresh natively via `pull: always`).

The Synapse self-build path uses `ansible.builtin.shell` for BuildKit
support and is left as-is. The customizations image build (which builds
on top of the locally-tagged synapse image) is converted to
`docker_image_build` with `pull: false`, preserving its existing
rebuild-trigger semantics.

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

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

roles/custom/matrix-synapse/tasks/goofys/setup_install.yml

@@ -15,11 +15,9 @@
     tasks_from: ensure_fuse_installed
 
 - name: Ensure Goofys Docker image is pulled
-  community.docker.docker_image:
+  community.docker.docker_image_pull:
     name: "{{ matrix_s3_goofys_container_image }}"
-    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
-    force_source: "{{ matrix_s3_goofys_container_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
-    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_s3_goofys_container_image_force_pull }}"
+    pull: always
   register: matrix_goofys_container_image_pull_result
   retries: "{{ devture_playbook_help_container_retries_count }}"
   delay: "{{ devture_playbook_help_container_retries_delay }}"