Automatic merge from submit-queue

Add test to detach a pd whose node was deleted

**What this PR does / why we need it**:
A test for the following issue :
If a node with a GCE PD attached is deleted (before the volume is detached), subsequent attempts by the attach/detach controller to detach it should not fail.


**Bonus** :Added additional code to ensure that the pd can still be attached to a different node.
Edit : Removed it as it was making the test much slower.

https://github.com/kubernetes/kubernetes/issues/29358