Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. add metrics to cinder volume **What this PR does / why we need it**: We need cinder volume metrics to be exposed **Which issue(s) this PR fixes**: Fixes #62644 **Special notes for your reviewer**: This is not tested in running cluster. **Release note**: ```release-note Make volume usage metrics available for Cinder ``` cc @gnufied @dims