immich: migrate to envFrom with per-container InfisicalSecrets

Flat CR narrowed to recursive: false so it keeps serving the SMB credentials that immich-data-smb references by name.

applications/immich/postgres/immich-postgres-statefulset.yaml

@@ -31,24 +31,9 @@ spec:
           volumeMounts:
             - name: immich-postgresql-immich
               mountPath: /var/lib/postgres
-          env:
-            - name: POSTGRES_PASSWORD
-              valueFrom:
-                secretKeyRef:
-                  name: immich-secrets
-                  key: db_password
-            - name: POSTGRES_USER
-              valueFrom:
-                secretKeyRef:
-                  name: immich-secrets
-                  key: db_user
-            - name: POSTGRES_DB
-              valueFrom:
-                secretKeyRef:
-                  name: immich-secrets
-                  key: db_name
-            - name: PGDATA
-              value: /var/lib/postgres/data
+          envFrom:
+            - secretRef:
+                name: immich-postgres-secrets
       volumes:
         - name: immich-postgresql-immich
           persistentVolumeClaim: