Automatic merge from submit-queue

Fix potential panic in namespace controller when rapidly create/delet…

Fixes https://github.com/kubernetes/kubernetes/issues/33676

The theory is this could occur in either of the following scenarios:

1. HA environment where a GET to a different API server than what the WATCH was read from
1. In a many controller scenario (i.e. where multiple finalizers participate), a namespace that is created and deleted with the same name could trip up the other namespace controller to see a namespace with the same name that was not actually in a delete state.  Added checks to verify uid matches across retry operations.

/cc @liggitt @kubernetes/rh-cluster-infra