Migrate large workers (worker17-18) to elastic workers

• Decomission worker18

• infra/swh-sysadmin-provisioning!89: Reclaim worker18 resources to create a new production rancher node

• Decomission worker17

• infra/swh-charts!15: Make it consume from the same queues [1] - [ ] Reclaim worker17 resources to create a new production rancher node

• [1] https://grafana.softwareheritage.org/goto/JAg3kGI4z?orgId=1 pp

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Migrated from T4618 (view on Phabricator)