cluster: k0: upgrade to ceph 16.2.5

This was fun. See b/6 for a log of how swimmingly this went.

Change-Id: I96c3c18b5d33ef86523b3506f49a390419e9ca7f

cluster/kube/k0.libsonnet

@@ -140,7 +140,6 @@ local rook = import "lib/rook.libsonnet";
                                     for id in [
                                         "5000c5008508c433",
                                         "5000c500850989cf",
-                                        "5000c5008508f843",
                                         "5000c5008508baf7",
                                     ]
                                 ],
@@ -150,7 +149,6 @@ local rook = import "lib/rook.libsonnet";
                                 devices: [
                                     { name: "/dev/disk/by-id/wwn-0x" + id }
                                     for id in [
-                                        "5000c5008508ee03",
                                         "5000c5008508c9ef",
                                         "5000c5008508df33",
                                         "5000c5008508dd3b",

cluster/kube/lib/rook.libsonnet

@@ -726,8 +726,7 @@ local oa = kube.OpenAPI;
             metadata+: cluster.metadata,
             spec: {
                 cephVersion: {
-                    # https://github.com/rook/rook/issues/2945#issuecomment-483964014
-                    image: "ceph/ceph:v14.2.16",
+                    image: "quay.io/ceph/ceph:v16.2.5",
                     allowUnsupported: true,
                 },
                 dataDirHostPath: if name == "ceph-waw2" then "/var/lib/rook" else "/var/lib/rook-%s" % [name],