Provide namespace explicitly to "can-i" commands (#2266)
Provide namespace explicitly to "can-i" commands (#2266)

Testing environment can have CDI install ns as default, and our test is not prone to this:
```bash
$ oc project
No project has been set. Pass a project name to make that the default.
$ oc project openshift-cnv
Now using project "openshift-cnv" on server "https://api.akalenyu-411.cnv-qe.rhcloud.com:6443".
$ oc project
Using project "openshift-cnv" on server "https://api.akalenyu-411.cnv-qe.rhcloud.com:6443".
$ kubectl auth can-i --as system:serviceaccount:openshift-cnv:cdi-sa watch secrets
yes
$ kubectl auth can-i --as system:serviceaccount:openshift-cnv:cdi-sa watch secrets --namespace default
no
```

Signed-off-by: Alex Kalenyuk <77578c3ce491cadaffe9b225ce72d2389064bf43@redhat.com>
kubevirt/containerized-data-importer,kubevirt/containerized-data-importer,kubevirt/containerized-data-importer