Add the pod name when we use podman ps -p

The pod name does not appear when doing `podman ps -p`.
It is missing as the documentation says:
-p, --pod              Print the ID and name of the pod the containers are associated with

The pod name is added in the ps output and checked in unit tests.

Closes #4703

Signed-off-by: NevilleC <neville.cain@qonto.eu>

libpod/runtime_ctr.go

@@ -768,7 +768,7 @@ func (r *Runtime) GetContainers(filters ...ContainerFilter) ([]*Container, error
 		return nil, define.ErrRuntimeStopped
 	}
 
-	ctrs, err := r.state.AllContainers()
+	ctrs, err := r.GetAllContainers()
 	if err != nil {
 		return nil, err
 	}