Add secrets from secretmanager on update_rooms_list in CI

Change CI method: update_rooms_list

• Create a matrix bot
• Use git gitlab ci template: https://gitlab.eclipse.org/eclipsefdn/it/releng/gitlab-runner-service/gitlab-ci-templates/-/blob/main/jobs/git.gitlab-ci.yml?ref_type=heads
• Use Secret key value in method: update_rooms_list