Differently than all the other tests, the testsuite
`TestListPodResourcesUsesOnlyActivePodsV1` did not enable
the `KubeletPodResourcesDynamicResources` FG.
This was just an oversight, because the test doesn't care
about the DynamicResources data, so the enablement was forgot.
We add the setting to make the tests consistent.
Signed-off-by: Francesco Romani <fromani@redhat.com>