Upgrade Immich to v2.1.0

Move to using kustomize'd helm charts to deploy it
Update the new version of the helm chart, which has very different
values structure
Move database into the db namespace
Upgrade the db to include vectorchord
Upgrade CNPG to now include barman cloud natively
Migrate databases to Barman Cloud plugin, completely
Eliminate yet another shell script step in applying my k8s config

manifests/immich/postgres-user-secret.yaml

@@ -2,41 +2,6 @@ apiVersion: external-secrets.io/v1
 kind: ExternalSecret
 metadata:
   name: postgres-user-immich
-  namespace: db
-spec:
-  target:
-    name: postgres-user-immich
-    deletionPolicy: Delete
-    template:
-      type: Opaque
-      data:
-        username: |-
-          {{ .username }}
-        password: |-
-          {{ .password }}
-  data:
-    - secretKey: username
-      sourceRef:
-        storeRef:
-          name: bitwarden-login
-          kind: ClusterSecretStore
-      remoteRef:
-        key: 5ce63e26-dd7f-46d4-b7ed-b310002ef93f
-        property: username
-    - secretKey: password
-      sourceRef:
-        storeRef:
-          name: bitwarden-login
-          kind: ClusterSecretStore
-      remoteRef:
-        key: 5ce63e26-dd7f-46d4-b7ed-b310002ef93f
-        property: password
----
-apiVersion: external-secrets.io/v1
-kind: ExternalSecret
-metadata:
-  name: postgres-user-immich
-  namespace: immich
 spec:
   target:
     name: postgres-user-immich