ci: copy theme assets from Docker container

tools/deployment/includes/build-theme-assets.yml

@@ -1,19 +1,8 @@
 ---
-- name: Install theme dependencies
-  command: >
-    npm ci
-    chdir={{ release_theme_path }}
-    creates={{ release_theme_path }}/node_modules
-
-- name: Generate front-end assets
-  command: >
-    npm run production
-    chdir={{ release_theme_path }}
-    creates={{ release_theme_path }}/dist
-
-- name: Remove files that are no longer needed
-  file:
-    path: "{{ release_theme_path }}/{{ item }}"
-    state: absent
-  with_items:
-    - node_modules
+- name: Copy theme dependencies from the Docker container.
+  command: |
+    pwd
+    ls
+    docker-compose pull
+    ./run copy-theme-assets
+    creates={{ release_theme_path }}/build