feat: deploy artifactapi3 (#192)

just-enough to test terraform deployment and begin migration. have
change to cnpg for the database and a new bucket for storage

---------

Co-authored-by: Ben Vincent <ben@unkin.net>
Reviewed-on: #192

apps/base/artifactapi/pvc_v3.yaml

@@ -0,0 +1,14 @@
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: artifactapi-v3-redis-data
+  namespace: artifactapi
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 5Gi
+  storageClassName: cephrbd-fast-delete
+  volumeMode: Filesystem