feat: migrate CSI drivers to dedicated storage project (#45)

- Migrate csi-cephfs from Terraform to ArgoCD
- Migrate csi-cephrbd from Terraform to ArgoCD
- Create dedicated storage project and ApplicationSet for CSI drivers
- Add csi-* pattern matching in storage ApplicationSet
- Remove CSI apps from platform project to separate concerns

Reviewed-on: #45

apps/base/csi-cephrbd/vaultstaticsecret.yaml

@@ -0,0 +1,15 @@
+---
+apiVersion: secrets.hashicorp.com/v1beta1
+kind: VaultStaticSecret
+metadata:
+  name: csi-rbd-secret
+  namespace: csi-cephrbd
+spec:
+  vaultAuthRef: ceph-csi-rbd
+  mount: kv
+  type: kv-v2
+  path: service/kubernetes/au/syd1/csi/ceph-rbd-secret
+  refreshAfter: 5m
+  destination:
+    name: csi-rbd-secret
+    create: true