CSI Driver always recursively modifies the volume file permissions


I0219 15:04:18.322755       1 volume_linux.go:150] "Performing recursive ownership change on rootDir because of missing setgit bits in permissions of the root directory" path=".../mount"

setgid bit is reset on the stage by calling chmod for mounter directory https://github.com/ydb-platform/nbs/blob/main/cloud/blockstore/tools/csi_driver/internal/driver/node.go#L922