`rbd-nbd` tests fail when running minikube with Podman

[nixpanic]

Describe the bug

While running e2e.test on a Kubernetes cluster created with minikube start --driver=podman (and some hacks from #3420), volumes created with a rbd-nbd mounter in the StorageClass can not be deleted.

Steps to reproduce

1. Setup details: enable testNBD in e2e/e2e_test.go by default
2. push the change to a new PR for testing
3. See error

[github-actions]

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