CASMTRIAGE-7950 add metadata.namespace to tenant custom resource (#5801)

Signed-off-by: Jacob Salmela <[email protected]>
(cherry picked from commit 387fd24)

Co-authored-by: Jacob Salmela <[email protected]>

Author: github-actions[bot]

operations/multi-tenancy/ExampleWorkflow.md

@@ -86,6 +86,7 @@ For the purposes of this guide, the tenant configuration settings are made in ea
     kind: Tenant
     metadata:
       name: devten01a
+      namespace: tenants
     spec:
       childnamespaces:
       - slurm