namespace: adding radosnamespace in canary CI
namespace: adding radosnamespace in canary CI

THe radosnamespace CRD is already added by
https://github.com/rook/rook/pull/9733,
Checking the external script with the namespace created by
the CRD

Signed-off-by: parth-gr <583be16d1c64273f0f691248fe7345d86bf42e7d@redhat.com>

rook/rook,rook/rook,rook/rook,rook/rook,rook/rook