With the latest Ceph release, resizing NFS PVCs results in unexpected size

# Describe the bug #

The resize test for NFS seems to fail with the following error:

expected size 1Gi found 35G

This might be because there is a new Ceph release, this needs furtner
investigation.

# Environment details #

- Image/version of Ceph CSI driver : devel
- Helm chart version : none (only the `deploy/` yaml files provide NFS)
- Kernel version : unkown
- Mounter used for mounting PVC (for cephFS its `fuse` or `kernel`. for rbd its
`krbd` or `rbd-nbd`) : unrelated
- Kubernetes cluster version : any
- Ceph cluster version : most recent Squid

# Steps to reproduce #

Steps to reproduce the behavior: run the e2e tests for NFS

# Actual results #

e2e for NFS fails with `expected size 1Gi found 35G`

# Expected behavior #

Pass the NFS e2e as before.

# Additional context #

Identified and worked-around in #5137