cdk-addons 1.21 needs updated cephcsi image

In debugging a PersistentVolumeClaim issue I tracked it to this Cephx CVE:
https://docs.ceph.com/en/latest/security/CVE-2021-20288/

The fix for that CVE is to:
ceph config set mon auth_allow_insecure_global_id_reclaim false

After doing this, PersistentVolumeClaims get stuck Pending as they can't authorize with ceph.

The recommended fix for that is to update ceph clients.

I confirmed that updating the cephcsi container image to v3.3.1 resolves the PVC issue. However cdk-addons keeps switching it back to v2.1.2. https://pastebin.ubuntu.com/p/vT7WsTgCrj/

Checking the various snap versions I see:

cdk-addon cephcsi
1.23.0-alpha.2 v3.3.1
1.22.2 v3.3.1
1.22.1 v3.3.1
1.21.5 v2.1.2
1.21.3 v2.1.2
1.20.11 v2.1.2
1.20.4 v2.1.2
1.19.15 v2.1.2
1.19.8 v2.1.2
1.18.20 none

So it seems we need to backport the cephcsi container image version v3.3.1 to 1.21, 1.20, and 1.19.