fix(helm-chart): update helm release ceph-csi-cephfs to 3.12.2

| datasource | package         | from   | to     |
| ---------- | --------------- | ------ | ------ |
| helm       | ceph-csi-cephfs | 3.12.1 | 3.12.2 |

core/ceph/cephfs.yaml

@@ -8,7 +8,7 @@ spec:
     spec:
       # renovate: registryUrl=https://ceph.github.io/csi-charts
       chart: ceph-csi-cephfs
-      version: 3.12.1
+      version: 3.12.2
       sourceRef:
         kind: HelmRepository
         name: ceph-csi