Replace judgels-client cache-busting hash with Docker container ID

[fushar]

Currently, judgels-client.js is cache-busted using the app version:

judgels/deployment/v3-ubuntu-24.04/ansible/roles/judgels-client-deploy/tasks/main.yml

Lines 34 to 35 in 0f15431

	- name: Append cache-busting hash to judgels-client.js
	shell: docker exec judgels-client sed -i 's/judgels-client.js/judgels-client.{{ app_version | default('latest', true) }}.js/' index.html

However, it's too naive. It means we can't change things manually.

Update it so that the hash uses docker container ID instead.