Explicit namespace on get-crc-creds

The `get-crc-creds.sh` script expects the currently selected project to
be `openstack`, but that's unlikely to happen if we are doing things on
the `openstack-lightspeed` namespace.

In this patch we update the script so it explicit sets the namespace on
the `oc` commands.

Author: Akrog

scripts/get-crc-creds.sh

@@ -4,8 +4,8 @@ eval $(crc oc-env)
 
 # Get the TLS CA bundle used by the OpenStack client
 # (we could also get it from the secret, but the command is less clear)
-oc cp openstackclient:/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem ./tls-ca-bundle.pem
+oc -n openstack cp openstackclient:/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem ./tls-ca-bundle.pem
 
 # Get the OpenStack credentials
-oc cp openstackclient:/home/cloud-admin/.config/openstack/clouds.yaml ./clouds.yaml
-oc cp openstackclient:/home/cloud-admin/.config/openstack/secure.yaml ./secure.yaml
+oc -n openstack cp openstackclient:/home/cloud-admin/.config/openstack/clouds.yaml ./clouds.yaml
+oc -n openstack cp openstackclient:/home/cloud-admin/.config/openstack/secure.yaml ./secure.yaml