Update docker-compose version used in installation references
Created by: caugustus-sourcegraph
Update the provider-specific installation references to use the new required docker compose version. The general docs were updated in https://github.com/sourcegraph/sourcegraph/pull/32631 but we missed these specific references.
Related: https://github.com/sourcegraph/sourcegraph/pull/32825
Test plan
Confirm docs look ok. The new version was tested as part of https://github.com/sourcegraph/deploy-sourcegraph-docker/pull/782