Merge pull request #54964 from rhcs-dashboard/add-prometheus-federation-cli

mgr/dashboard: add prometheus federation config for mullti-cluster monitoring

Reviewed-by: Adam King <adking@redhat.com>
Reviewed-by: Ankush Behl <cloudbehl@gmail.com>
Reviewed-by: frittentheke <NOT@FOUND>
Reviewed-by: Nizamudeen A <nia@redhat.com>
Reviewed-by: Redouane Kachach <rkachach@redhat.com>

diff --cc src/pybind/mgr/cephadm/tests/test_services.py
Simple merge

diff --cc src/python-common/ceph/deployment/service_spec.py
Simple merge